Do not prompt for a passphrase if we fail to open a keyfile, and log the
reason the open failed to debug.
bz #1693, found by tj AT castaglia org, ok djm@
+ - djm@cvs.openbsd.org 2010/01/11 10:51:07
+ [ssh-keygen.c]
+ when converting keys, truncate key comments at 72 chars as per RFC4716;
+ bz#1630 reported by tj AT castaglia.org; ok markus@
20100110
- (dtucker) [configure.ac misc.c readconf.c servconf.c ssh-keyscan.c]