Description of problem:
Even set as "Error", only the "printf" variable trigger error.
The others are still warning

Version-Release number of selected component (if applicable):
Zanata 3.4.2-SNAPSHOT (git-server-3.4.1-7-g1ed6db1)

How reproducible:
Always

Steps to Reproduce:
1. In project setting page, set all validators to "Error" (except for either printf or Positional printf)
2. In any document, trigger any non-printf error


Actual results:
Error was shown as warning.

Expected results:
Error should be shown as error.

Additional info: