tiny-fugue: fix pcre_fullinfo calls to prevent tinyfugue warn about every custom variable

I had the same issue as described here: http://sourceforge.net/p/tinyfugue/discussion/650747/thread/6c60fd66

I compared homebrew and [macports](https://github.com/sakuro/macports/blob/master/net/tf/files/tf-508b-Fix-build-with-PCRE-8.30.patch) tinyfugue PCRE-patches, and noticed that the macports version patched `pcre_fullinfo` lines differently.

This change will fix the issue described in sourceforge.