[dw-free] Stray ? in entry URL when clicking on Track and being brought back to the entry

[fu]

[commit: http://hg.dwscoalition.org/dw-free/rev/d5c9f9570e7d]

http://bugs.dwscoalition.org/show_bug.cgi?id=3811

Only add the "?" if we have a style argument.

Patch by fu.

Files modified:

• htdocs/manage/tracking/comments.bml
• htdocs/manage/tracking/entry.bml

( Diff: 2 files changed. )