[Ohrrpgce] SVN: teeemcee/8234 Fix warning when running unlump under Unix on old games with capitalised

[subversion at HamsterRepublic.com]

teeemcee
2016-12-17 04:01:24 -0800 (Sat, 17 Dec 2016)
322
Fix warning when running unlump under Unix on old games with capitalised archinym

For example unlumping test.rpg would give the warning (and then succeed):
 Could not remove(testgame/test.rpgdir/TEST.gen): No such file or directory
 Done.

The warning was r7680 which replaced KILL with killfile which does error checking
---
U   wip/unlump.bas