Don't allow negative arguments to the "wait" console command.

code/qcommon/cmd.c

@@ -52,6 +52,8 @@ bind g "cmd use rocket ; +attack ; wait ; -attack ; cmd use blaster"
 void Cmd_Wait_f( void ) {
 	if ( Cmd_Argc() == 2 ) {
 		cmd_wait = atoi( Cmd_Argv( 1 ) );
+		if ( cmd_wait < 0 )
+			cmd_wait = 1; // ignore the argument
 	} else {
 		cmd_wait = 1;
 	}
@@ -176,7 +178,7 @@ void Cbuf_Execute (void)
 
 	while (cmd_text.cursize)
 	{
-		if ( cmd_wait )	{
+		if ( cmd_wait > 0 ) {
 			// skip out while text still remains in buffer, leaving it
 			// for next frame
 			cmd_wait--;