use file if defined

Author: jedwards4b

git_fleximod/cli.py

@@ -18,9 +18,9 @@ def print_help(self, file=None):
         for path in candidate_paths:
             if os.path.exists(path):
                 with open(path) as f:
-                    print( f.read())
+                    print( f.read(), file=file)
                     return
-        print( "README.md not found.")
+        print( "README.md not found.", file=file)
 
 def find_root_dir(filename=".gitmodules"):
     """ finds the highest directory in tree