mark: fix introduced linting error

RonnyPfannschmidt · RonnyPfannschmidt · commit 45524241a5e9 · 2016-09-08T10:16:45.000+02:00
diff --git a/_pytest/compat.py b/_pytest/compat.py
@@ -145,7 +145,7 @@ def _escape_strings(val):
 else:
     STRING_TYPES = bytes, str, unicode
 
-    from itertools import imap
+    from itertools import imap  # NOQA
 
     def _escape_strings(val):
         """In py2 bytes and str are the same type, so return if it's a bytes
