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/plat-riscos/rourl2path.py b/Lib/plat-riscos/rourl2path.py
index 981ceba..a5aee34 100644
--- a/Lib/plat-riscos/rourl2path.py
+++ b/Lib/plat-riscos/rourl2path.py
@@ -60,12 +60,12 @@
                 "/foo/bar/index.html",
                 "/foo/bar/",
                 "/"]:
-        print '%r -> %r' % (url, url2pathname(url))
-    print "*******************************************************"
+        print('%r -> %r' % (url, url2pathname(url)))
+    print("*******************************************************")
     for path in ["SCSI::SCSI4.$.Anwendung",
                  "PythonApp:Lib",
                  "PythonApp:Lib.rourl2path/py"]:
-        print '%r -> %r' % (path, pathname2url(path))
+        print('%r -> %r' % (path, pathname2url(path)))
 
 if __name__ == '__main__':
     test()