* comments: Fix too loose test for comments pages that matched
normal pages with "comment_" in their name. Closes: #521322
* comments: Fix anchor ids to be legal xhtml. Closes: #521339
* comments: Fix too loose test for comments pages that matched
normal pages with "comment_" in their name. Closes: #521322
* comments: Fix anchor ids to be legal xhtml. Closes: #521339