forwarding test is extremely slow copying data on some machines so switch
back to copying the much smaller ls binary until we can figure out why
this is.
[regress/Makefile regress/rekey.sh regress/integrity.sh
regress/sshd-log-wrapper.sh regress/forwarding.sh regress/test-exec.sh]
use -E option for ssh and sshd to write debuging logs to ssh{,d}.log and
save the output from any failing tests. If a test fails the debug output
from ssh and sshd for the failing tests (and only the failing tests) should
be available in failed-ssh{,d}.log.
[regress/cipher-speed.sh regress/forcecommand.sh regress/forwarding.sh]
Sync regress tests to -current; include dtucker@'s new cfgmatch and
forcecommand tests. Add cipher-speed.sh test (not linked in yet)