* Use m_mktemp2() or m_mktemp() instead of mkstemp(3) (see section on
nmh temporary files below).
* Use m_unlink() instead of unlink(3).
* Use m_mktemp2() or m_mktemp() instead of mkstemp(3) (see section on
nmh temporary files below).
* Use m_unlink() instead of unlink(3).