Py3k compat for clang-format Sublime Text extension.

Sublime Text 2 uses Python 2.6
Sublime Text 3 uses Python 3.3

The `print` function has been available as a __future__ import since
2.6, so use it.

Patch by Johan Engelen!

git-svn-id: svn://svn.chromium.org/llvm-project/cfe/trunk/tools/clang-format@194287 0b72dbe1-c17f-4bc7-b9db-2b4152be0356
diff --git a/clang-format-sublime.py b/clang-format-sublime.py
index 2099d7a..16ff56e 100644
--- a/clang-format-sublime.py
+++ b/clang-format-sublime.py
@@ -12,6 +12,7 @@
 # It operates on the current, potentially unsaved buffer and does not create
 # or save any files. To revert a formatting, just undo.
 
+from __future__ import print_function
 import sublime
 import sublime_plugin
 import subprocess
@@ -45,7 +46,7 @@
                          stderr=subprocess.PIPE, stdin=subprocess.PIPE)
     output, error = p.communicate(buf.encode(encoding))
     if error:
-      print error
+      print(error)
     self.view.replace(
         edit, sublime.Region(0, self.view.size()),
         output.decode(encoding))