Updating textproc/p5-Text-BibTeX from 0.40 to 0.41

pkgsrc changes:
- Adjust patch to build-script to ensure rpath set

Upstream changes:
Release 0.41 - 14 March, 2010
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* tested under Solaris and FreeBSD.
* fixed compilation/installation under Mac OS X.
* fixed some C code on format-security (thanks to Jerome Quelin).
* fixed build system to check for dependencies.
* added patch from Philip Kime to fix names with commas handling.

(sno)