ignore the expat_config.h* files rather than config.h*
ignore the expat_config.h* files rather than config.h*

tiran/expat,libexpat/libexpat,libexpat/libexpat,libexpat/libexpat,tiran/expat,libexpat/libexpat,libexpat/libexpat,tiran/expat,tiran/expat,libexpat/libexpat