Bugzilla bug #49477: fixed memory leak in CERT_OpenCertDB.  Have certDBFilenameCallback duplicate the filename string so that its return value can be freed.
Bugzilla bug #49477: fixed memory leak in CERT_OpenCertDB.  Have
certDBFilenameCallback duplicate the filename string so that its
return value can be freed.

nmav/nss,nmav/nss,nmav/nss,ekr/nss-old,nmav/nss,nmav/nss,ekr/nss-old,ekr/nss-old,ekr/nss-old,ekr/nss-old,ekr/nss-old,ekr/nss-old,nmav/nss,nmav/nss