see https://bugs.kde.org/show_bug.cgi?id=273397
------ When using a "ProxyCommand" option, libssh requires the command to be quoted (i.e: ' ProxyCommand "ssh -q -A -X -W %h:%p JUMPHOST" ') for the whole line to be used (otherwise only "ssh" is called). i.e.: on the quoted string is loaded, everything else following the blank is discarded. Parameters are split between blanks inside the quoted string. Result: - kio_sftp (which is libssh-based) works - ssh complains it can't find an executable named "ssh -q -A -X -W %h:%p JUMPHOST" and fails. ------ This differs from ssh's own behaviour, where command should NOT be quoted (i.e: ' ProxyCommand ssh -q -A -X -W %h:%p JUMPHOST '), otherwise the whole quoted string is interpreted as the executable name. i.e: the whole line is loaded and parameters are split between blanks outside the string. Resuot: - ssh works as it should - kio_sftp only runs "ssh" without any option and gets the "ssh usage" as an error and fails.
