Update test_util.py

Appease the python linter.

Author: compnerd

utils/incrparse/test_util.py

@@ -23,7 +23,7 @@ def escapeCmdArg(arg):
 
 def run_command(cmd):
     if sys.version_info[0] < 3:
-      cmd = list(map(lambda s: s.encode('utf-8'), cmd))
+        cmd = list(map(lambda s: s.encode('utf-8'), cmd))
     print(' '.join([escapeCmdArg(arg) for arg in cmd]))
     return subprocess.check_output(cmd, stderr=subprocess.STDOUT)