Update bare exceptions to specify Exception.

This will keep us from accidentally catching program-exiting exceptions
like KeyboardInterupt and SystemExit.

lib/ansible/modules/database/mysql/mysql_user.py

@@ -588,7 +588,7 @@ def main():
             try:
                 cursor = mysql_connect(module, 'root', '', config_file, ssl_cert, ssl_key, ssl_ca, db,
                                        connect_timeout=connect_timeout)
-            except:
+            except Exception:
                 pass
 
         if not cursor: