Tidy up command-line handling

Patch as supplied had a logic error if one (incorrect) argument was
supplied. This fixes that, and neatens up the usage message.

diff --git a/xtrlock.c b/xtrlock.c
index 86cc94a821dc320e6b28bbc76935eb8a07c0afef..3d5ce704eb5e4bf91059c15364555f1b54de11d3 100644 (file)
--- a/xtrlock.c
+++ b/xtrlock.c
@@ -90,8 +90,8 @@ int main(int argc, char **argv){
 
   if ((argc == 2) && (strcmp(argv[1], "-b") == 0)) {
     blank = 1;
-  } else if (argc > 2) {
-    fprintf(stderr,"xtrlock (version %s): no arguments or \"-b\" (blank screen) allowed\n",
+  } else if (argc > 1) {
+    fprintf(stderr,"xtrlock (version %s); usage: xtrlock [-b]\n",
             program_version);
     exit(1);
   }