use ssh1 not ssh.

Reference: /n/atom/patch/applied2013/srvsshupd
Date: Sun Jun 23 19:46:01 CES 2013
Signed-off-by: quanstro@quanstro.net

--- /rc/bin/srvssh	Sun Jun 23 19:45:53 2013
+++ /rc/bin/srvssh	Sun Jun 23 19:45:53 2013
@@ -81,7 +81,7 @@
 }
 
 x=(srv $sleephack -e \
-	'ssh '$rawflags' '$1' '$rawhack' '$u9fspath' -na none -u ''$''USER -l ''$''HOME/u9fs.log' \
+	'ssh1 '$rawflags' '$1' '$rawhack' '$u9fspath' -na none -u ''$''USER -l ''$''HOME/u9fs.log' \
 	$srv $mtpt)
 $x