- (djm) [configure.ac] include leading zero characters in OpenSSL version
   number; fixes test for unsupported versions
 - (djm) [sshbuf-getput-crypto.c] Fix compilation when OpenSSL lacks ECC
 - (djm) [openbsd-compat/bsd-snprintf.c] Fix compilation failure (prototype/
   definition mismatch) and warning for broken/missing snprintf case.
 - (djm) [configure.ac] double braces to appease autoconf
 - (djm) [sshd.c] Ignore SIGXFSZ in preauth monitor child; can explode on
   lastlog writing on platforms with high UIDs; bz#2263