gmod_src: Fixed Posix compile (valve_minmax_off/on)

[garry]

[B]Revision 570[/B]
[INDENT]Fixed Posix compile (valve_minmax_off/on)[/INDENT][B]Changed Files:[/B]
[LIST]
[*]trunk/src_garrysmod/garrysmod/URLBuilder.cpp
[/LIST]
Committed By [B]Garry Newman[/B]