modular xorg.
- supply corresponding USE_XORG for all imake-using ports that need it
- USE_IMAKE no longer implies USE_XLIB in absence of USE_XORG
- retire USE_X_PREFIX which is not really used anywhere after the
above change
- a few minor nits like whitespace and SF macro
Tested by: 2 tinderbox runs by pav
Approved by: portmgr (pav)
[Has anyone figured-out what makes the number 393 so interesting to PW, now?]
I wonder what was going through Jordan's head during his infamous
$Id$-smashing commit.
Before I forget....
Thanks to naddy@mips.rhein-neckar.de (Christian Weisgerber) for prompting
this commit. See msg-id: 7geokh$tje$1@mips.rhein-neckar.de
