Bug 430544 and Bug 582800: Fix leak of 'arena' in CertReq and leak of 'subject' in certutil_main.  Call PL_ArenaFinish before exiting.  The patch is contributed by Hanno Boeck <hanno@hboeck.de>.  r=wtc.
Bug 430544 and Bug 582800: Fix leak of 'arena' in CertReq and leak of
'subject' in certutil_main.  Call PL_ArenaFinish before exiting.  The patch
is contributed by Hanno Boeck <hanno@hboeck.de>.  r=wtc.

thespooler/nss,thespooler/nss,thespooler/nss,thespooler/nss,thespooler/nss,thespooler/nss,thespooler/nss