merge revision(s) 63112: [Backport #14818]

	Remove outdated example from Numeric documentation

	Since 2.5, Numeric instances can be cloned and duplicated.

	[Fix GH-1850]

	From: Miguel Landaeta <miguel@miguel.cc>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@64435 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 5 insertions, 4 deletions

diff --git a/numeric.c b/numeric.c
index 918b46e9d3..1589271d0a 100644
--- a/numeric.c
+++ b/numeric.c
@@ -5272,10 +5272,11 @@ rb_int_s_isqrt(VALUE self, VALUE num)
  *   1.object_id == a.object_id   #=> true
  *
  * There can only ever be one instance of the integer +1+, for example. Ruby ensures this
- * by preventing instantiation and duplication.
+ * by preventing instantiation. If duplication is attempted, the same instance is returned.
  *
- *   Integer.new(1)   #=> NoMethodError: undefined method `new' for Integer:Class
- *   1.dup            #=> TypeError: can't dup Integer
+ *   Integer.new(1)                   #=> NoMethodError: undefined method `new' for Integer:Class
+ *   1.dup                            #=> 1
+ *   1.object_id == 1.dup.object_id   #=> true
  *
  * For this reason, Numeric should be used when defining other numeric classes.
  *
diff --git a/version.h b/version.h
index 9ab8d48f2e..6dd25095f2 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 77
+#define RUBY_PATCHLEVEL 78
 
 #define RUBY_RELEASE_YEAR 2018
 #define RUBY_RELEASE_MONTH 8