Add ssh_no_update wrapper

Allows scripts inside ebuild sandboxes to run ssh without modifying the
~/.ssh/known_hosts file.

BUG=chromium-os:22501
TEST=Verified.

Change-Id: Ic9ee454125ca36cfc89c3379f82f131880fc9182
Reviewed-on: https://gerrit.chromium.org/gerrit/11155
Reviewed-by: Brian Harring <ferringb@chromium.org>
Reviewed-by: David James <davidjames@chromium.org>
Commit-Ready: Ryan Cui <rcui@chromium.org>
Tested-by: Ryan Cui <rcui@chromium.org>
1 file changed