Fix an error in logging in jquery.gravy.retina.js.
Review Request #8029 — Created March 4, 2016 and submitted
The logging statement when we fail to parse the URL for a gravatar was using an
undefined name, which was showing up as an error in the console, but more
importantly, could break some js-tests that used fake gravatar URLs.
Ran js-tests.
Tool: PEP8 Style Checker Ignored Files: djblets/static/djblets/js/jquery.gravy.retina.js Tool: Pyflakes Ignored Files: djblets/static/djblets/js/jquery.gravy.retina.js