Slight performance fix to FixSyntax

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code@9419 5227b50d-9349-4574-b055-4b0a7525e11c
Simplify PMID regex

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code@9420 5227b50d-9349-4574-b055-4b0a7525e11c