port for 'devel/libgsf-gnome' Makefile error

[Bob Frazier]

I have experienced Makefile errors in the most recent ports-all for the
devel/libgsf-gnome and math/gnumeric2 ports.

I have fixed both of them so that they will work.

The following 'Makefile.diff' indicates the changes to Makefile.  I tested
it and it works fine now.

22c22
<   LDFLAGS="-L${LOCALBASE}/lib -lgsf-1"
---
>   LDFLAGS="-L${LOCALBASE}/lib --library gsf-1"