convert-emoji: Don’t pointlessly do rest of loop

skip can never become FALSE again, so break as soon as it becomes TRUE.

gtk/emoji/convert-emoji.c

@@ -130,6 +130,7 @@ main (int argc, char *argv[])
                 for (j = 0; blacklist[j]; j++) {
                         if (strstr (name, blacklist[j]) != 0)
                                 skip = TRUE;
+                                break;
                 }
                 if (skip)
                         continue;