Suggest ag -Q when relevant

This detects when `ag` suggests the `-Q` option, and adds it.

thefuck/rules/ag_literal.py

@@ -0,0 +1,11 @@
+from thefuck.utils import for_app
+from thefuck.utils import replace_argument
+
+
+@for_app('ag')
+def match(command):
+    return 'run ag with -Q' in command.stderr
+
+
+def get_new_command(command):
+    return command.script.replace('ag', 'ag -Q', 1)