merge revision(s) 57751,57753,57755:

	fileutils.rb: improve rdoc for FileUtils

	* lib/fileutils.rb: [DOC] fix invalid example code to make it
	  syntax highlighted, fix rdoc for lists, nodoc internal methods,
	  avoid a dangerous example.
	hash.c: [DOC] fix book title in example
	struct.c: improve rdoc for Struct

	* struct.c: [DOC] improve examples for ::new, improve #dig example,
	  simplify #select example, use consistent style for return values,
	  fix typos and example code style, remove duplicate cross reference.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@57918 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/hash.c b/hash.c
index c90814b2ee..4a28b86bae 100644
--- a/hash.c
+++ b/hash.c
@@ -4375,7 +4375,7 @@ env_update(VALUE env, VALUE hash)
  *  Hashes are an easy way to represent data structures, such as
  *
  *    books         = {}
- *    books[:matz]  = "The Ruby Language"
+ *    books[:matz]  = "The Ruby Programming Language"
  *    books[:black] = "The Well-Grounded Rubyist"
  *
  *  Hashes are also commonly used as a way to have named parameters in