add scp path to _PATH_STDPATH

[Kevin Steves]

On Sat, 17 Feb 2001, Tim Rice wrote:
: Try this patch out.
:
: In addition to the things mentioned below, it adds a line
: to sshd_config telling what PATH was compiled into sshd.

thanks, i finally looked at this.

i don't like munging path if a user specified a path
(--with-default-path).  i don't know if we want to try to maintain per
platform default paths, and they probably should not include '.', as
some of the defaults in the patch do.

i would like to see the path to scp added only if the user did not
specify --with-default-path, and the default path does not contain scp.