print-short-help after parse error in chip name

git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@1047 7894878c-1315-0410-8ee3-d5d059ff63e0

prog/sensors/main.c

@@ -188,6 +188,7 @@ int main (int argc, char *argv[])
     for(i = optind; i < argc; i++) 
       if ((res = sensors_parse_chip_name(argv[i],chips+chips_count))) {
         fprintf(stderr,"Parse error in chip name `%s'\n",argv[i]);
+        print_short_help();
         exit(1);
       } else if (++chips_count == CHIPS_MAX) {
         fprintf(stderr,"Too many chips on command line!\n");