Fix wrong iterator for match.
Fix wrong iterator for match.

LebedevRI/rawspeed,anarsoul/rawspeed,klauspost/rawspeed,darktable-org/rawspeed,anarsoul/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,LebedevRI/rawspeed,mgehre/rawspeed,klauspost/rawspeed,LebedevRI/rawspeed,LebedevRI/rawspeed,darktable-org/rawspeed,mgehre/rawspeed,LebedevRI/rawspeed,anarsoul/rawspeed,darktable-org/rawspeed