add "[FATAL]" marker on abort

Indicate that the situation is fatal.
2019-10-10 16:10:58 +09:00 · 2019-10-10 16:10:58 +09:00 · d96f04d73a
commit d96f04d73a
parent 0b26f56a77
1 changed files with 1 additions and 0 deletions
--- a/error.c
+++ b/error.c
@ -2640,6 +2640,7 @@ rb_raise(VALUE exc, const char *fmt, ...)
    }
    else {
        /* Not in a ruby thread */
+        fprintf(stderr, "%s", "[FATAL] ");
        vfprintf(stderr, fmt, args);
        abort();
    }