Show the deprecated name in the warning

Fixed up a58bbd6a512d95ca010d8bebae4fe590400c1413.

1 files changed, 1 insertions, 1 deletions

diff --git a/dir.c b/dir.c
index eaabc0a789..303e291bd9 100644
--- a/dir.c
+++ b/dir.c
@@ -3337,7 +3337,7 @@ rb_file_directory_p(void)
 static VALUE
 rb_dir_exists_p(VALUE obj, VALUE fname)
 {
-    rb_warn_deprecated("", "Dir.exist?");
+    rb_warn_deprecated("Dir.exists?", "Dir.exist?");
     return rb_file_directory_p(obj, fname);
 }