SDL: Document -l in the manual
SDL: Document -l in the manual

cassos/mgba,Anty-Lemon/mgba,AdmiralCurtiss/mgba,Anty-Lemon/mgba,Iniquitatis/mgba,jeremyherbert/mgba,fr500/mgba,libretro/mgba,sergiobenrocha2/mgba,MerryMage/mgba,sergiobenrocha2/mgba,jeremyherbert/mgba,mgba-emu/mgba,sergiobenrocha2/mgba,libretro/mgba,jeremyherbert/mgba,Touched/mgba,askotx/mgba,Touched/mgba,askotx/mgba,iracigt/mgba,jeremyherbert/mgba,AdmiralCurtiss/mgba,iracigt/mgba,AdmiralCurtiss/mgba,fr500/mgba,Anty-Lemon/mgba,sergiobenrocha2/mgba,zerofalcon/mgba,fr500/mgba,cassos/mgba,cassos/mgba,mgba-emu/mgba,libretro/mgba,MerryMage/mgba,iracigt/mgba,iracigt/mgba,libretro/mgba,askotx/mgba,Touched/mgba,MerryMage/mgba,Iniquitatis/mgba,zerofalcon/mgba,Anty-Lemon/mgba,Iniquitatis/mgba,askotx/mgba,zerofalcon/mgba,mgba-emu/mgba,Iniquitatis/mgba,sergiobenrocha2/mgba,libretro/mgba,fr500/mgba,mgba-emu/mgba