Correct change date of r2520

git-svn-id: https://svn.code.sf.net/p/rubycocoa/svn/trunk/src@2521 f4f36d40-9719-0410-9868-dde021a23eda
Suppress warning from format specifies "%hd" and "%ld"

git-svn-id: https://svn.code.sf.net/p/rubycocoa/svn/trunk/src@2522 f4f36d40-9719-0410-9868-dde021a23eda
Suppress warning from missing base class

git-svn-id: https://svn.code.sf.net/p/rubycocoa/svn/trunk/src@2523 f4f36d40-9719-0410-9868-dde021a23eda