Handle exceptions during config file parsing

Handle uncaught exceptions during config file parsing

lib/ansible/constants.py

@@ -71,7 +71,11 @@ def load_config_file():
 
     for path in [path0, path1, path2, path3]:
         if path is not None and os.path.exists(path):
+            try:
                 p.read(path)
+            except ConfigParser.Error as e:
+                print "Error reading config file: \n%s" % e
+                sys.exit(1)
             return p
     return None