Fixed linting errors

yamllint/rules/braces.py

@@ -154,7 +154,8 @@ DEFAULT = {'forbid': False,
 
 
 def check(conf, token, prev, next, nextnext, context):
-    if conf['forbid'] == True and isinstance(token, yaml.FlowMappingStartToken):
+    if (conf['forbid'] is True and
+            isinstance(token, yaml.FlowMappingStartToken)):
         yield LintProblem(token.start_mark.line + 1,
                           token.end_mark.column + 1,
                           'forbidden flow mapping')

yamllint/rules/brackets.py

@@ -155,7 +155,8 @@ DEFAULT = {'forbid': False,
 
 
 def check(conf, token, prev, next, nextnext, context):
-    if conf['forbid'] == True and isinstance(token, yaml.FlowSequenceStartToken):
+    if (conf['forbid'] is True and
+            isinstance(token, yaml.FlowSequenceStartToken)):
         yield LintProblem(token.start_mark.line + 1,
                           token.end_mark.column + 1,
                           'forbidden flow sequence')