merge revision(s) 61507: [Backport #14247]

	Fix KeyError#{key,receiver} of Thread#fetch

	[ruby-core:84508] [Bug #14247]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@61583 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/thread.c b/thread.c
index 2460d7e3ac..9f2267a1f4 100644
--- a/thread.c
+++ b/thread.c
@@ -3168,7 +3168,7 @@ rb_thread_fetch(int argc, VALUE *argv, VALUE self)
 	return rb_yield(key);
     }
     else if (argc == 1) {
-	rb_raise(rb_eKeyError, "key not found: %"PRIsVALUE, key);
+	rb_key_err_raise(rb_sprintf("key not found: %+"PRIsVALUE, key), self, key);
     }
     else {
 	return argv[1];