From 347f3f30d6743e8b7cd133ae298c0290f2ef3a1d Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 9 Jan 2019 13:58:51 +0000
Subject: [PATCH] time.c: update error message for invalid utc_offset

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66763 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 time.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/time.c b/time.c
index a9bd2e8606..95a134c453 100644
--- a/time.c
+++ b/time.c
@@ -2047,7 +2047,10 @@ NORETURN(static void invalid_utc_offset(void));
 static void
 invalid_utc_offset(void)
 {
-    rb_raise(rb_eArgError, "\"+HH:MM\" or \"-HH:MM\" expected for utc_offset");
+    static const char message[] = "\"+HH:MM\", \"-HH:MM\", \"UTC\" "
+        "or \"A\"..\"I\",\"K\"..\"Z\" expected for utc_offset";
+    VALUE str = rb_usascii_str_new_static(message, sizeof(message)-1);
+    rb_exc_raise(rb_exc_new_str(rb_eArgError, str));
 }
 
 static VALUE