merge revision(s) r45291,r45299,r45314,r45325: [Backport #9518]
* ext/dl/cptr.c (dlptr_free), ext/dl/handle.c (dlhandle_free), ext/fiddle/handle.c (fiddle_handle_free), ext/fiddle/pointer.c (fiddle_ptr_free): fix memory leak. based on the patch Heesob Park at [ruby-dev:48021] [Bug #9599].
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@45820 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) r45291,r45299,r45314,r45325: [Backport #9518]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@45820 b2dd03c8-39d4-4d8f-98ff-823fe69b080e