merge revision(s) 63512,63514: [Backport #14790]

	time.rb: fix parsing time zone in iso8601

	* lib/time.rb (Time.xmlschema): a colon in time zone designator
	  can be omitted.  [ruby-core:87277] [Bug #14790]

	time.rb: fix parsing time zone in iso8601

	* lib/time.rb (Time.xmlschema): the minute in time zone designator
	  can be omitted together with the preceding colon.
	  [ruby-core:87277] [Bug #14790]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@64431 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 4 insertions, 2 deletions

diff --git a/lib/time.rb b/lib/time.rb
index bb5d0aac38..eb46a03ad3 100644
--- a/lib/time.rb
+++ b/lib/time.rb
@@ -575,7 +575,7 @@ class Time
           T
           (\d\d):(\d\d):(\d\d)
           (\.\d+)?
-          (Z|[+-]\d\d:\d\d)?
+          (Z|[+-]\d\d(?::?\d\d)?)?
           \s*\z/ix =~ date
         year = $1.to_i
         mon = $2.to_i
diff --git a/test/test_time.rb b/test/test_time.rb
index 9d7c976abf..26a7daaf2a 100644
--- a/test/test_time.rb
+++ b/test/test_time.rb
@@ -105,6 +105,8 @@ class TestTimeExtension < Test::Unit::TestCase # :nodoc:
     t = Time.utc(1996, 12, 20, 0, 39, 57)
     s = "1996-12-19T16:39:57-08:00"
     assert_equal(t, Time.__send__(method, s))
+    assert_equal(t, Time.__send__(method, s.sub(/:(?=00\z)/, '')))
+    assert_equal(t, Time.__send__(method, s.sub(/:00\z/, '')))
     # There is no way to generate time string with arbitrary timezone.
     s = "1996-12-20T00:39:57Z"
     assert_equal(t, Time.__send__(method, s))
diff --git a/version.h b/version.h
index f2cb8aac30..3ca67d5b3e 100644
--- a/version.h
+++ b/version.h
@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.5.2"
 #define RUBY_RELEASE_DATE "2018-08-18"
-#define RUBY_PATCHLEVEL 74
+#define RUBY_PATCHLEVEL 75
 
 #define RUBY_RELEASE_YEAR 2018
 #define RUBY_RELEASE_MONTH 8