potential memory leak
dir.c (rb_dir_getwd): get rid of potential memory leak.
util.c (ruby_getcwd): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58780 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
potential memory leak
dir.c (rb_dir_getwd): get rid of potential memory leak.
util.c (ruby_getcwd): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58780 b2dd03c8-39d4-4d8f-98ff-823fe69b080e