Fix most trivially-findable print statements.

There's one major and one minor category still unfixed:
doctests are the major category (and I hope to be able to augment the
refactoring tool to refactor bona fide doctests soon);
other code generating print statements in strings is the minor category.

(Oh, and I don't know if the compiler package works.)
diff --git a/Lib/test/test_pyclbr.py b/Lib/test/test_pyclbr.py
index a03daa9..478083e 100644
--- a/Lib/test/test_pyclbr.py
+++ b/Lib/test/test_pyclbr.py
@@ -28,13 +28,13 @@
         ''' succeed iff {l1} - {ignore} == {l2} - {ignore} '''
         missing = (set(l1) ^ set(l2)) - set(ignore)
         if missing:
-            print >>sys.stderr, "l1=%r\nl2=%r\nignore=%r" % (l1, l2, ignore)
+            print("l1=%r\nl2=%r\nignore=%r" % (l1, l2, ignore), file=sys.stderr)
             self.fail("%r missing" % missing.pop())
 
     def assertHasattr(self, obj, attr, ignore):
         ''' succeed iff hasattr(obj,attr) or attr in ignore. '''
         if attr in ignore: return
-        if not hasattr(obj, attr): print "???", attr
+        if not hasattr(obj, attr): print("???", attr)
         self.failUnless(hasattr(obj, attr),
                         'expected hasattr(%r, %r)' % (obj, attr))
 
@@ -43,7 +43,7 @@
         ''' succeed iff key in obj or key in ignore. '''
         if key in ignore: return
         if key not in obj:
-            print >>sys.stderr, "***",key
+            print("***",key, file=sys.stderr)
         self.failUnless(key in obj)
 
     def assertEqualsOrIgnored(self, a, b, ignore):
@@ -110,7 +110,7 @@
                 try:
                     self.assertListEq(real_bases, pyclbr_bases, ignore)
                 except:
-                    print >>sys.stderr, "class=%s" % py_item
+                    print("class=%s" % py_item, file=sys.stderr)
                     raise
 
                 actualMethods = []
@@ -132,7 +132,7 @@
                                                ignore)
                     # can't check file or lineno
                 except:
-                    print >>sys.stderr, "class=%s" % py_item
+                    print("class=%s" % py_item, file=sys.stderr)
                     raise
 
         # Now check for missing stuff.