* hash.c (env_update): [DOC] fix expected output, should be 0 instead

of 10. Patch by @yakko. [GH-411]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43127 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

hash.c

@@ -3552,7 +3552,7 @@ env_update(VALUE env, VALUE hash)
  *
  *  Accessing a value in a Hash requires using its key:
  *
- *    puts grades["Jane Doe"] # => 10
+ *    puts grades["Jane Doe"] # => 0
  *
  *  === Common Uses
  *