Merge pull request #3806 from cmitu/platform-updates-3

platform: add a few more extensions (PC98, X68k, Saturn)

Author: joolswills

platforms.cfg

@@ -164,7 +164,7 @@ oric_fullname="Oric 1"
 pc88_exts=".d88 .cmt .m3u .t88"
 pc88_fullname="NEC PC-8801"
 
-pc98_exts=".d88 .d98 .88d .98d .fdi .xdf .hdm .dup .2hd .tfd .hdi .thd .nhd .hdd .zip"
+pc98_exts=".d88 .d98 .88d .98d .fdi .fdd .xdf .hdm .dup .2hd .tfd .hdi .thd .nhd .hdd .zip"
 pc98_fullname="NEC PC-9801"
 
 pc_exts=".bat .com .conf .cue .dosz .exe .ins .ima .img .iso .m3u .m3u8 .sh .vhd .zip"
@@ -199,7 +199,7 @@ psx_fullname="PlayStation"
 samcoupe_exts=".dsk .mgt .sbt .sad"
 samcoupe_fullname="SAM Coupe"
 
-saturn_exts=".chd .cue .mdf .zip"
+saturn_exts=".chd .cue .m3u .mdf .zip"
 saturn_fullname="Sega Saturn"
 
 scummvm_exts=".sh .svm"
@@ -250,7 +250,7 @@ wonderswancolor_fullname="Wonderswan Color"
 x1_exts=".dx1 .zip .2d .2hd .tfd .d88 .88d .hdm .xdf .dup .cmd"
 x1_fullname="Sharp X1"
 
-x68000_exts=".dim .hdf .hdm .2hd .d88 .m3u"
+x68000_exts=".dim .hdf .hdm .2hd .d88 .m3u .xdf"
 x68000_fullname="X68000"
 
 zmachine_exts=".dat .zip .z1 .z2 .z3 .z4 .z5 .z6 .z7 .z8"