Clarify the valid usage printed on invalid usage

2 months ago · cdf5ca711e
parent 8513acc937
commit cdf5ca711e
1 changed files with 1 additions and 1 deletions
--- a/main.c
+++ b/main.c
@ -334,7 +334,7 @@ int main(int argc, char* argv[]) {
    wl_display_roundtrip(dpy);
  } else {
    ASSERT(argc >= 1, "Invalid exec!");
-    printf("Usage: %s ?|<identifier>\n", argv[0]);
+    printf("Usage: %s [?|<identifier>]\n", argv[0]);
    exit(-1);
  }