[Ohrrpgce] SVN: teeemcee/9640 All four music backends' music_play were modifying the songfile arg, whi

[subversion at HamsterRepublic.com]

teeemcee
2017-11-03 07:35:59 -0700 (Fri, 03 Nov 2017)
170
All four music backends' music_play were modifying the songfile arg, which broke some BAM stuff in importsong

(Yes, most of music_play is duplicated across all backends)
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U   wip/music.bi
U   wip/music_allegro.bas
U   wip/music_native.bas
U   wip/music_native2.bas
U   wip/music_sdl.bas