* ext/socket/option.c: Document synonymous methods, by windwiny [GH-277]
* ext/stringio/stringio.c: ditto
* ext/io/wait/wait.c: ditto
* ext/gdbm/gdbm.c: ditto
* ext/dl/cfunc.c: ditto
* ext/zlib/zlib.c: ditto
* ext/win32ole/win32ole.c: ditto
* ext/dbm/dbm.c: ditto
* ext/json/generator/generator.c: ditto
* ext/date/date_core.c: ditto


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40319 b2dd03c8-39d4-4d8f-98ff-823fe69b080e