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.)

Lib/platform.py

@@ -283,7 +283,7 @@ def _test_parse_release_file():
         ):
         parsed = _parse_release_file(input)
         if parsed != output:
-            print (input, parsed)
+            print((input, parsed))
 
 def linux_distribution(distname='', version='', id='',
 
@@ -1308,7 +1308,7 @@ def _test_sys_version():
         ):
         parsed = _sys_version(input)
         if parsed != output:
-            print (input, parsed)
+            print((input, parsed))
 
 def python_implementation():
 
@@ -1480,5 +1480,5 @@ if __name__ == '__main__':
     # Default is to print the aliased verbose platform string
     terse = ('terse' in sys.argv or '--terse' in sys.argv)
     aliased = (not 'nonaliased' in sys.argv and not '--nonaliased' in sys.argv)
-    print platform(aliased,terse)
+    print(platform(aliased,terse))
     sys.exit(0)