Whitespace normalization.
diff --git a/Tools/scripts/xxci.py b/Tools/scripts/xxci.py
index d8608a0..2567bc5 100755
--- a/Tools/scripts/xxci.py
+++ b/Tools/scripts/xxci.py
@@ -16,102 +16,102 @@
 MAXSIZE = 200*1024 # Files this big must be binaries and are skipped.
 
 def getargs():
-	args = sys.argv[1:]
-	if args:
-		return args
-	print 'No arguments, checking almost *, in "ls -t" order'
-	list = []
-	for file in os.listdir(os.curdir):
-		if not skipfile(file):
-			list.append((getmtime(file), file))
-	list.sort()
-	if not list:
-		print 'Nothing to do -- exit 1'
-		sys.exit(1)
-	list.sort()
-	list.reverse()
-	for mtime, file in list: args.append(file)
-	return args
+    args = sys.argv[1:]
+    if args:
+        return args
+    print 'No arguments, checking almost *, in "ls -t" order'
+    list = []
+    for file in os.listdir(os.curdir):
+        if not skipfile(file):
+            list.append((getmtime(file), file))
+    list.sort()
+    if not list:
+        print 'Nothing to do -- exit 1'
+        sys.exit(1)
+    list.sort()
+    list.reverse()
+    for mtime, file in list: args.append(file)
+    return args
 
 def getmtime(file):
-	try:
-		st = os.stat(file)
-		return st[ST_MTIME]
-	except os.error:
-		return -1
+    try:
+        st = os.stat(file)
+        return st[ST_MTIME]
+    except os.error:
+        return -1
 
 badnames = ['tags', 'TAGS', 'xyzzy', 'nohup.out', 'core']
 badprefixes = ['.', ',', '@', '#', 'o.']
 badsuffixes = \
-	['~', '.a', '.o', '.old', '.bak', '.orig', '.new', '.prev', '.not', \
-	 '.pyc', '.fdc', '.rgb', '.elc', ',v']
+        ['~', '.a', '.o', '.old', '.bak', '.orig', '.new', '.prev', '.not', \
+         '.pyc', '.fdc', '.rgb', '.elc', ',v']
 ignore = []
 
 def setup():
-	ignore[:] = badnames
-	for p in badprefixes:
-		ignore.append(p + '*')
-	for p in badsuffixes:
-		ignore.append('*' + p)
-	try:
-		f = open('.xxcign', 'r')
-	except IOError:
-		return
-	ignore[:] = ignore + string.split(f.read())
+    ignore[:] = badnames
+    for p in badprefixes:
+        ignore.append(p + '*')
+    for p in badsuffixes:
+        ignore.append('*' + p)
+    try:
+        f = open('.xxcign', 'r')
+    except IOError:
+        return
+    ignore[:] = ignore + string.split(f.read())
 
 def skipfile(file):
-	for p in ignore:
-		if fnmatch.fnmatch(file, p): return 1
-	try:
-		st = os.lstat(file)
-	except os.error:
-		return 1 # Doesn't exist -- skip it
-	# Skip non-plain files.
-	if not S_ISREG(st[ST_MODE]): return 1
-	# Skip huge files -- probably binaries.
-	if st[ST_SIZE] >= MAXSIZE: return 1
-	# Skip executables
-	try:
-		data = open(file, 'r').read(len(EXECMAGIC))
-		if data == EXECMAGIC: return 1
-	except:
-		pass
-	return 0
+    for p in ignore:
+        if fnmatch.fnmatch(file, p): return 1
+    try:
+        st = os.lstat(file)
+    except os.error:
+        return 1 # Doesn't exist -- skip it
+    # Skip non-plain files.
+    if not S_ISREG(st[ST_MODE]): return 1
+    # Skip huge files -- probably binaries.
+    if st[ST_SIZE] >= MAXSIZE: return 1
+    # Skip executables
+    try:
+        data = open(file, 'r').read(len(EXECMAGIC))
+        if data == EXECMAGIC: return 1
+    except:
+        pass
+    return 0
 
 def badprefix(file):
-	for bad in badprefixes:
-		if file[:len(bad)] == bad: return 1
-	return 0
+    for bad in badprefixes:
+        if file[:len(bad)] == bad: return 1
+    return 0
 
 def badsuffix(file):
-	for bad in badsuffixes:
-		if file[-len(bad):] == bad: return 1
-	return 0
+    for bad in badsuffixes:
+        if file[-len(bad):] == bad: return 1
+    return 0
 
 def go(args):
-	for file in args:
-		print file + ':'
-		if differing(file):
-			showdiffs(file)
-			if askyesno('Check in ' + file + ' ? '):
-				sts = os.system('rcs -l ' + file) # ignored
-				sts = os.system('ci -l ' + file)
+    for file in args:
+        print file + ':'
+        if differing(file):
+            showdiffs(file)
+            if askyesno('Check in ' + file + ' ? '):
+                sts = os.system('rcs -l ' + file) # ignored
+                sts = os.system('ci -l ' + file)
 
 def differing(file):
-	cmd = 'co -p ' + file + ' 2>/dev/null | cmp -s - ' + file
-	sts = os.system(cmd)
-	return sts != 0
+    cmd = 'co -p ' + file + ' 2>/dev/null | cmp -s - ' + file
+    sts = os.system(cmd)
+    return sts != 0
 
 def showdiffs(file):
-	cmd = 'rcsdiff ' + file + ' 2>&1 | ${PAGER-more}'
-	sts = os.system(cmd)
+    cmd = 'rcsdiff ' + file + ' 2>&1 | ${PAGER-more}'
+    sts = os.system(cmd)
 
 def askyesno(prompt):
-	s = raw_input(prompt)
-	return s in ['y', 'yes']
+    s = raw_input(prompt)
+    return s in ['y', 'yes']
 
 try:
-	setup()
-	go(getargs())
+    setup()
+    go(getargs())
 except KeyboardInterrupt:
-	print '[Intr]'
+    print '[Intr]'