elm: Fix memleaks for string duplicated in parse_str.
elm: Fix memleaks for string duplicated in parse_str.

We get a strdup'ed string here so we need to take care about freeing it.

SVN revision: 80941

rvandegrift/elementary,rvandegrift/elementary,tasn/elementary,FlorentRevest/Elementary,tasn/elementary,rvandegrift/elementary,tasn/elementary,FlorentRevest/Elementary,FlorentRevest/Elementary,rvandegrift/elementary,tasn/elementary,FlorentRevest/Elementary,tasn/elementary