Fix several memory leaks, and crashes, in iconvlist(3).

- Both curitem and curitem (via the names list) was always leaked.
- malloc(3) failures lead to some leaks.
- __bsd___iconv_get_list() failure lead to a crash since its error was not
  handles and __bsd___iconv_free_list() is not NULL-safe.

I have slightly refactored this to avoid extra malloc and free logic in cases
of malloc(3) failing.

There are still bad assumptions here that I did not deal with.  One of which is
that the data will always have a '/' so the strchr(3) will not return NULL.

Coverity CID:	1130055 1130054 1130053

0 files changed, 0 insertions, 0 deletions