iseq.c: keyword arguments

* iseq.c (rb_iseq_disasm): fix keyword arguments index.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39623 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
.gdbinit: initialize color sequences

* .gdbinit (hook-run): initialize color sequences for each runs.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39624 b2dd03c8-39d4-4d8f-98ff-823fe69b080e