* string.c (str_byte_substr): return nil for negative length.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31007 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 52db44d0f7..a5859815f3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Mar  2 23:19:56 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* string.c (str_byte_substr): return nil for negative length.
+
 Wed Mar  2 21:15:00 2011  Tanaka Akira  <akr@fsij.org>
 
 	* ext/openssl/ossl_pkey_dh.c: parenthesize macro arguments.