Untabify to pass the -tt test.
diff --git a/Lib/mailbox.py b/Lib/mailbox.py
index 108967d..6d5f6e4 100755
--- a/Lib/mailbox.py
+++ b/Lib/mailbox.py
@@ -8,269 +8,269 @@
 
 class _Mailbox:
 
-	def __init__(self, fp):
-		self.fp = fp
-		self.seekp = 0
+        def __init__(self, fp):
+                self.fp = fp
+                self.seekp = 0
 
-	def seek(self, pos, whence=0):
-		if whence==1:		# Relative to current position
-			self.pos = self.pos + pos
-		if whence==2:		# Relative to file's end
-			self.pos = self.stop + pos
-		else:			# Default - absolute position
-			self.pos = self.start + pos
+        def seek(self, pos, whence=0):
+                if whence==1:           # Relative to current position
+                        self.pos = self.pos + pos
+                if whence==2:           # Relative to file's end
+                        self.pos = self.stop + pos
+                else:                   # Default - absolute position
+                        self.pos = self.start + pos
 
-	def next(self):
-		while 1:
-			self.fp.seek(self.seekp)
-			try:
-				self._search_start()
-			except EOFError:
-				self.seekp = self.fp.tell()
-				return None
-			start = self.fp.tell()
-			self._search_end()
-			self.seekp = stop = self.fp.tell()
-			if start <> stop:
-				break
-		return rfc822.Message(_Subfile(self.fp, start, stop))
+        def next(self):
+                while 1:
+                        self.fp.seek(self.seekp)
+                        try:
+                                self._search_start()
+                        except EOFError:
+                                self.seekp = self.fp.tell()
+                                return None
+                        start = self.fp.tell()
+                        self._search_end()
+                        self.seekp = stop = self.fp.tell()
+                        if start <> stop:
+                                break
+                return rfc822.Message(_Subfile(self.fp, start, stop))
 
 class _Subfile:
 
-	def __init__(self, fp, start, stop):
-		self.fp = fp
-		self.start = start
-		self.stop = stop
-		self.pos = self.start
+        def __init__(self, fp, start, stop):
+                self.fp = fp
+                self.start = start
+                self.stop = stop
+                self.pos = self.start
 
-	def read(self, length = None):
-		if self.pos >= self.stop:
-			return ''
-		remaining = self.stop - self.pos
-		if length is None or length < 0:
-			length = remaining
-		elif length > remaining:
-			length = remaining
-		self.fp.seek(self.pos)
-		data = self.fp.read(length)
-		self.pos = self.fp.tell()
-		return data
+        def read(self, length = None):
+                if self.pos >= self.stop:
+                        return ''
+                remaining = self.stop - self.pos
+                if length is None or length < 0:
+                        length = remaining
+                elif length > remaining:
+                        length = remaining
+                self.fp.seek(self.pos)
+                data = self.fp.read(length)
+                self.pos = self.fp.tell()
+                return data
 
-	def readline(self, length = None):
-		if self.pos >= self.stop:
-			return ''
-		if length is None:
-			length = self.stop - self.pos
-		self.fp.seek(self.pos)
-		data = self.fp.readline(length)
-		self.pos = self.fp.tell()
-		return data
+        def readline(self, length = None):
+                if self.pos >= self.stop:
+                        return ''
+                if length is None:
+                        length = self.stop - self.pos
+                self.fp.seek(self.pos)
+                data = self.fp.readline(length)
+                self.pos = self.fp.tell()
+                return data
 
         def readlines(self, sizehint = -1):
-		lines = []
-		while 1:
-			line = self.readline()
-			if not line:
-				break
-			lines.append(line)
-			if sizehint >= 0:
-				sizehint = sizehint - len(line)
-				if sizehint <= 0:
-					break
-		return lines
+                lines = []
+                while 1:
+                        line = self.readline()
+                        if not line:
+                                break
+                        lines.append(line)
+                        if sizehint >= 0:
+                                sizehint = sizehint - len(line)
+                                if sizehint <= 0:
+                                        break
+                return lines
 
-	def tell(self):
-		return self.pos - self.start
+        def tell(self):
+                return self.pos - self.start
 
-	def seek(self, pos, whence=0):
-		if whence == 0:
-			self.pos = self.start + pos
-		elif whence == 1:
-			self.pos = self.pos + pos
-		elif whence == 2:
-			self.pos = self.stop + pos
+        def seek(self, pos, whence=0):
+                if whence == 0:
+                        self.pos = self.start + pos
+                elif whence == 1:
+                        self.pos = self.pos + pos
+                elif whence == 2:
+                        self.pos = self.stop + pos
 
-	def close(self):
-		del self.fp
+        def close(self):
+                del self.fp
 
 class UnixMailbox(_Mailbox):
 
-	def _search_start(self):
-		while 1:
-			line = self.fp.readline()
-			if not line:
-				raise EOFError
-			if line[:5] == 'From ' and self._isrealfromline(line):
-				return
+        def _search_start(self):
+                while 1:
+                        line = self.fp.readline()
+                        if not line:
+                                raise EOFError
+                        if line[:5] == 'From ' and self._isrealfromline(line):
+                                return
 
-	def _search_end(self):
-		while 1:
-			pos = self.fp.tell()
-			line = self.fp.readline()
-			if not line:
-				return
-			if line[:5] == 'From ' and self._isrealfromline(line):
-				self.fp.seek(pos)
-				return
+        def _search_end(self):
+                while 1:
+                        pos = self.fp.tell()
+                        line = self.fp.readline()
+                        if not line:
+                                return
+                        if line[:5] == 'From ' and self._isrealfromline(line):
+                                self.fp.seek(pos)
+                                return
 
-	# An overridable mechanism to test for From-line-ness.
-	# You can either specify a different regular expression
-	# or define a whole new _isrealfromline() method.
-	# Note that this only gets called for lines starting with
-	# the 5 characters "From ".
+        # An overridable mechanism to test for From-line-ness.
+        # You can either specify a different regular expression
+        # or define a whole new _isrealfromline() method.
+        # Note that this only gets called for lines starting with
+        # the 5 characters "From ".
 
-	_fromlinepattern = r"From \s*[^\s]+\s+\w\w\w\s+\w\w\w\s+\d?\d\s+" \
-			   r"\d?\d:\d\d(:\d\d)?(\s+[^\s]+)?\s+\d\d\d\d\s*$"
-	_regexp = None
+        _fromlinepattern = r"From \s*[^\s]+\s+\w\w\w\s+\w\w\w\s+\d?\d\s+" \
+                           r"\d?\d:\d\d(:\d\d)?(\s+[^\s]+)?\s+\d\d\d\d\s*$"
+        _regexp = None
 
-	def _isrealfromline(self, line):
-		if not self._regexp:
-			import re
-			self._regexp = re.compile(self._fromlinepattern)
-		return self._regexp.match(line)
+        def _isrealfromline(self, line):
+                if not self._regexp:
+                        import re
+                        self._regexp = re.compile(self._fromlinepattern)
+                return self._regexp.match(line)
 
 class MmdfMailbox(_Mailbox):
 
-	def _search_start(self):
-		while 1:
-			line = self.fp.readline()
-			if not line:
-				raise EOFError
-			if line[:5] == '\001\001\001\001\n':
-				return
+        def _search_start(self):
+                while 1:
+                        line = self.fp.readline()
+                        if not line:
+                                raise EOFError
+                        if line[:5] == '\001\001\001\001\n':
+                                return
 
-	def _search_end(self):
-		while 1:
-			pos = self.fp.tell()
-			line = self.fp.readline()
-			if not line:
-				return
-			if line == '\001\001\001\001\n':
-				self.fp.seek(pos)
-				return
+        def _search_end(self):
+                while 1:
+                        pos = self.fp.tell()
+                        line = self.fp.readline()
+                        if not line:
+                                return
+                        if line == '\001\001\001\001\n':
+                                self.fp.seek(pos)
+                                return
 
 class MHMailbox:
 
-	def __init__(self, dirname):
-		import re
-		pat = re.compile('^[0-9][0-9]*$')
-		self.dirname = dirname
-		files = os.listdir(self.dirname)
-		self.boxes = []
-		for f in files:
-			if pat.match(f):
-				self.boxes.append(f)
+        def __init__(self, dirname):
+                import re
+                pat = re.compile('^[0-9][0-9]*$')
+                self.dirname = dirname
+                files = os.listdir(self.dirname)
+                self.boxes = []
+                for f in files:
+                        if pat.match(f):
+                                self.boxes.append(f)
 
-	def next(self):
-		if not self.boxes:
-			return None
-		fn = self.boxes[0]
-		del self.boxes[0]
-		fp = open(os.path.join(self.dirname, fn))
-		return rfc822.Message(fp)
+        def next(self):
+                if not self.boxes:
+                        return None
+                fn = self.boxes[0]
+                del self.boxes[0]
+                fp = open(os.path.join(self.dirname, fn))
+                return rfc822.Message(fp)
 
 class Maildir:
 
-	# Qmail directory mailbox
+        # Qmail directory mailbox
 
-	def __init__(self, dirname):
-		import string
-		self.dirname = dirname
-		self.boxes = []
+        def __init__(self, dirname):
+                import string
+                self.dirname = dirname
+                self.boxes = []
 
-		# check for new mail
-		newdir = os.path.join(self.dirname, 'new')
-		for file in os.listdir(newdir):
-			if len(string.split(file, '.')) > 2:
-				self.boxes.append(os.path.join(newdir, file))
+                # check for new mail
+                newdir = os.path.join(self.dirname, 'new')
+                for file in os.listdir(newdir):
+                        if len(string.split(file, '.')) > 2:
+                                self.boxes.append(os.path.join(newdir, file))
 
-		# Now check for current mail in this maildir
-		curdir = os.path.join(self.dirname, 'cur')
-		for file in os.listdir(curdir):
-			if len(string.split(file, '.')) > 2:
-				self.boxes.append(os.path.join(curdir, file))
+                # Now check for current mail in this maildir
+                curdir = os.path.join(self.dirname, 'cur')
+                for file in os.listdir(curdir):
+                        if len(string.split(file, '.')) > 2:
+                                self.boxes.append(os.path.join(curdir, file))
 
-	def next(self):
-		if not self.boxes:
-			return None
-		fn = self.boxes[0]
-		del self.boxes[0]
-		fp = open(os.path.join(self.dirname, fn))
-		return rfc822.Message(fp)
+        def next(self):
+                if not self.boxes:
+                        return None
+                fn = self.boxes[0]
+                del self.boxes[0]
+                fp = open(os.path.join(self.dirname, fn))
+                return rfc822.Message(fp)
 
 class BabylMailbox(_Mailbox):
 
-	def _search_start(self):
-		while 1:
-			line = self.fp.readline()
-			if not line:
-				raise EOFError
-			if line == '*** EOOH ***\n':
-				return
+        def _search_start(self):
+                while 1:
+                        line = self.fp.readline()
+                        if not line:
+                                raise EOFError
+                        if line == '*** EOOH ***\n':
+                                return
 
-	def _search_end(self):
-		while 1:
-			pos = self.fp.tell()
-			line = self.fp.readline()
-			if not line:
-				return
-			if line == '\037\014\n':
-				self.fp.seek(pos)
-				return
+        def _search_end(self):
+                while 1:
+                        pos = self.fp.tell()
+                        line = self.fp.readline()
+                        if not line:
+                                return
+                        if line == '\037\014\n':
+                                self.fp.seek(pos)
+                                return
 
 
 def _test():
-	import time
-	import sys
-	import string
-	import os
+        import time
+        import sys
+        import string
+        import os
 
-	args = sys.argv[1:]
-	if not args:
-		for key in 'MAILDIR', 'MAIL', 'LOGNAME', 'USER':
-			if os.environ.has_key(key):
-				mbox = os.environ[key]
-				break
-		else:
-			print "$MAIL, $LOGNAME nor $USER set -- who are you?"
-			return
-	else:
-		mbox = args[0]
-	if mbox[:1] == '+':
-		mbox = os.environ['HOME'] + '/Mail/' + mbox[1:]
-	elif not '/' in mbox:
-		mbox = '/usr/mail/' + mbox
-	if os.path.isdir(mbox):
-		if os.path.isdir(os.path.join(mbox, 'cur')):
-			mb = Maildir(mbox)
-		else:
-			mb = MHMailbox(mbox)
-	else:
-		fp = open(mbox, 'r')
-		mb = UnixMailbox(fp)
-	
-	msgs = []
-	while 1:
-		msg = mb.next()
-		if msg is None:
-			break
-		msgs.append(msg)
-		if len(args) <= 1:
-			msg.fp = None
-	if len(args) > 1:
-		num = string.atoi(args[1])
-		print 'Message %d body:'%num
-		msg = msgs[num-1]
-		msg.rewindbody()
-		sys.stdout.write(msg.fp.read())
-	else:
-		print 'Mailbox',mbox,'has',len(msgs),'messages:'
-		for msg in msgs:
-			f = msg.getheader('from') or ""
-			s = msg.getheader('subject') or ""
-			d = msg.getheader('date') or ""
-			print '%20.20s   %18.18s   %-30.30s'%(f, d[5:], s)
+        args = sys.argv[1:]
+        if not args:
+                for key in 'MAILDIR', 'MAIL', 'LOGNAME', 'USER':
+                        if os.environ.has_key(key):
+                                mbox = os.environ[key]
+                                break
+                else:
+                        print "$MAIL, $LOGNAME nor $USER set -- who are you?"
+                        return
+        else:
+                mbox = args[0]
+        if mbox[:1] == '+':
+                mbox = os.environ['HOME'] + '/Mail/' + mbox[1:]
+        elif not '/' in mbox:
+                mbox = '/usr/mail/' + mbox
+        if os.path.isdir(mbox):
+                if os.path.isdir(os.path.join(mbox, 'cur')):
+                        mb = Maildir(mbox)
+                else:
+                        mb = MHMailbox(mbox)
+        else:
+                fp = open(mbox, 'r')
+                mb = UnixMailbox(fp)
+        
+        msgs = []
+        while 1:
+                msg = mb.next()
+                if msg is None:
+                        break
+                msgs.append(msg)
+                if len(args) <= 1:
+                        msg.fp = None
+        if len(args) > 1:
+                num = string.atoi(args[1])
+                print 'Message %d body:'%num
+                msg = msgs[num-1]
+                msg.rewindbody()
+                sys.stdout.write(msg.fp.read())
+        else:
+                print 'Mailbox',mbox,'has',len(msgs),'messages:'
+                for msg in msgs:
+                        f = msg.getheader('from') or ""
+                        s = msg.getheader('subject') or ""
+                        d = msg.getheader('date') or ""
+                        print '%20.20s   %18.18s   %-30.30s'%(f, d[5:], s)
 
 
 if __name__ == '__main__':
-	_test()
+        _test()