Fix should_update_issue_status to avoid uncaught exceptions.
Review Request #4025 — Created April 5, 2013 and submitted
Fix should_update_issue_status to avoid uncaught exceptions. Every so often, I see a traceback from our servers coming from BaseCommentResource.should_update_issue_status. The issue here is that issue_status isn't in the kwargs, but our issue_string_to_status will raise an exception if the passed-in value is None. This changes it to always return False in the case that issue_status isn't in kwargs, and fixes up a little bit of formatting.
Ran unit tests.
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