update rdoc of dig methods [ci skip]

* array.c (rb_ary_dig), hash.c (rb_hash_dig): [DOC] Update
  comments describing dig methods.  [Fix GH-1103]
* struct.c (rb_struct_dig): [DOC] add rdoc.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52607 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/hash.c b/hash.c
index c724b2e2b5..717a548a31 100644
--- a/hash.c
+++ b/hash.c
@@ -2695,8 +2695,8 @@ rb_hash_any_p(VALUE hash)
  * call-seq:
  *   hsh.dig(key, ...)                 -> object
  *
- * Retrieves the value object corresponding to the each <i>key</i>
- * objects repeatedly.
+ * Extracts the nested hash value specified by the sequence of <i>key</i>
+ * objects.
  *
  *   h = { foo: {bar: {baz: 1}}}
  *