Fix comment on _EscapeValue now that we switched quote types.
Fix comment on _EscapeValue now that we switched quote types.


git-svn-id: ec0e82f20d5f43f30b1ff61070d3821b1abb3ae2@17 d42a221a-af4f-11dd-872e-17ce28d58b44

mentionllc/google-visualization-python,pib/chartfood