merge revision(s) 57187,57234: [Backport #13075]

	pack.c: avoid returning uninitialized String

	Fix unpacking with 'b', 'B', 'h' and 'H' format. Do not return an
	uninitialized String to Ruby before filling the content bytes.
	Fixes r11175 ("pack.c (pack_unpack): execute block if given with
	unpacked value instead of creating an array", 2006-10-15).
	[ruby-core:78841] [Bug #13075]
	test/ruby/test_pack.rb: fix test case added by r57187

	The test case for String#unpack added by r57187 is not properly testing
	because the String will be filled after the block invocation.
	[ruby-core:78841] [Bug #13075]

	Thanks to nagachika for pointing this out:

	  http://d.hatena.ne.jp/nagachika/20161226/ruby_trunk_changes_57184_57194#r57187

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@58088 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/version.h b/version.h
index e30eef049c..f551e9b93e 100644
--- a/version.h
+++ b/version.h
@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.2.7"
 #define RUBY_RELEASE_DATE "2017-03-26"
-#define RUBY_PATCHLEVEL 420
+#define RUBY_PATCHLEVEL 421
 
 #define RUBY_RELEASE_YEAR 2017
 #define RUBY_RELEASE_MONTH 3