Update unit tests for Pygments changes.
Review Request #8010 — Created Feb. 26, 2016 and submitted
Pygments 2.1+ changed their output slightly, which was causing problems with
our unit tests. I've fixed the tests to cope with the new output.
Ran unit tests.
Tool: Pyflakes Processed Files: djblets/markdown/tests.py Tool: PEP8 Style Checker Processed Files: djblets/markdown/tests.py