m68k: have the targets in alphabetical order in the help text

compiler/msg/errore.msg

@@ -4277,12 +4277,12 @@ F*2P<x>_Set target CPU (aarch64,arm,avr,i386,i8086,jvm,m68k,mips,mipsel,powerpc,
 6*2Tamiga_Commodore Amiga
 6*2Tatari_Atari ST/STe/TT
 6*2Tembedded_Embedded
+6*2Thuman68k_Human 68k
 6*2Tlinux_Linux
 6*2Tnetbsd_NetBSD
 6*2Tmacosclassic_Classic Mac OS
 6*2Tpalmos_PalmOS
 6*2Tsinclairql_Sinclair QL
-6*2Thuman68k_Human 68k
 # i8086 targets
 8*2Tembedded_Embedded
 8*2Tmsdos_MS-DOS (and compatible)

compiler/msgtxt.inc

@@ -1899,12 +1899,12 @@ const msgtxt : array[0..000385,1..240] of char=(
   '6*2Tamiga_Commodore Amiga'#010+
   '6*2Tatari_Atari ST/STe/TT'#010+
   '6*2Tembedded_Embedded'#010+
-  '6*2','Tlinux_Linux'#010+
+  '6*2','Thuman68k_Human 68k'#010+
+  '6*2Tlinux_Linux'#010+
   '6*2Tnetbsd_NetBSD'#010+
   '6*2Tmacosclassic_Classic Mac OS'#010+
   '6*2Tpalmos_PalmOS'#010+
   '6*2Tsinclairql_Sinclair QL'#010+
-  '6*2Thuman68k_Human 68k'#010+
   '8*2Tembedded_Embedded'#010+
   '8*2Tmsdos_MS-DOS (and compatible)'#010+
   '8*2Twin16_Windows 16 bit'#010+