do not crash when setting locale fails

Summary: lolpython

Reviewed By: akotulski

Differential Revision: D3724416

fbshipit-source-id: f69d872

infer/lib/python/inferlib/config.py

@@ -14,8 +14,11 @@ import locale
 import os
 
 
+try:
     locale.setlocale(locale.LC_ALL, '')
     CODESET = locale.getlocale(locale.LC_CTYPE)[1]
+except locale.Error:
+    CODESET = None
 if CODESET is None:
     CODESET = 'ascii'