Add a C++11 rule

thefuck/rules/c++11.py

@@ -0,0 +1,11 @@
+def match(command, settings):
+    return (('g++' in command.script or 'clang++' in command.script) and
+            ('This file requires compiler and library support for the '
+             'ISO C++ 2011 standard.' in command.stderr or
+             '-Wc++11-extensions' in command.stderr
+            )
+           )
+
+
+def get_new_command(command, settings):
+    return command.script + ' -std=c++11'