Fixed a problem in string_process_bug_link() when replace #<bug number> while constructing an e-mail message (i.e $p_anchor = false). It used to use /e with non-php code.

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@1658 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9