update: sdl-net-1.2.5

update of devel/sdl-net to 1.2.5:

http://cryptonomicon.org/ports/files/updates/patch-sdl_net

notable port changes:

• more whitespace/arranging crap
• no longer depends on guilib. this is only required to build the included example chat code, which was never installed in the first place. feel free to blame the previous maintainer ;) this is explictly disabled w/--disable-gui just in case it is picked up in some alternate dimension
• sync DESCR w/reality

tested on i386, macppc, sparc, & sparc64 by playing with myself. via prboom i mean, sicko.

• jolan