class.c (rb_scan_args): Add support for optional keyword argument hash.
README.EXT, README.EXT.ja: Update documentation accordingly.
dir.c (dir_initialize): Make use of the new rb_scan_args() feature.
io.c (rb_io_s_popen, rb_scan_open_args, rb_io_initialize) (rb_io_s_pipe, open_key_args, io_s_foreach, io_s_readlines) (rb_io_s_read, rb_io_set_encoding): Ditto.
transcode.c (str_transcode, econv_args) (econv_primitive_convert): Ditto.
ext/zlib/zlib.c (rb_gzreader_initialize): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29214 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
class.c (rb_scan_args): Add support for optional keyword
argument hash.
README.EXT, README.EXT.ja: Update documentation accordingly.
dir.c (dir_initialize): Make use of the new rb_scan_args()
feature.
io.c (rb_io_s_popen, rb_scan_open_args, rb_io_initialize)
(rb_io_s_pipe, open_key_args, io_s_foreach, io_s_readlines)
(rb_io_s_read, rb_io_set_encoding): Ditto.
transcode.c (str_transcode, econv_args)
(econv_primitive_convert): Ditto.
ext/zlib/zlib.c (rb_gzreader_initialize): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29214 b2dd03c8-39d4-4d8f-98ff-823fe69b080e