Fix table sort order

Otherwise bsearch() can't find the help command, which causes other
problems later on

src/apple2/debug.c

@@ -38,10 +38,10 @@ apple2_debug_cmd cmdtable[] = {
         "Add breakpoint at <addr>", },
     { "dblock", "db", apple2_debug_cmd_dblock, 2, "<from> <to>",
         "Disassemble a block of code", },
-    { "help", "h", apple2_debug_cmd_help, 0, "",
-        "Print out this list of commands", },
     { "hdump", "hd", apple2_debug_cmd_hdump, 2, "<from> <to>",
         "Hex dump memory in a given region", },
+    { "help", "h", apple2_debug_cmd_help, 0, "",
+        "Print out this list of commands", },
     { "hidump", "hid", apple2_debug_cmd_hidump, 1, "<file>",
         "Dump hires graphics memory to file", },
     { "jump", "j", apple2_debug_cmd_jump, 1, "<addr>",