[PATCH] Fix jail(8) manpage.

[Steve Kargl]

According to src/UPDATING,

20110930:
        sysinstall has been removed

The following patch changes jail(8) to refer instead to bsdinstall.

Index: jail.8
===================================================================
--- jail.8	(revision 324728)
+++ jail.8	(working copy)
@@ -1006,7 +1006,7 @@
 .Pp
 Assuming no errors, you will end up with a shell prompt within the jail.
 You can now run
-.Pa /usr/sbin/sysinstall
+.Pa /usr/sbin/bsdinstall
 and do the post-install configuration to set various configuration options,
 or perform these actions manually by editing
 .Pa /etc/rc.conf ,

-- 
Steve
20170425 https://www.youtube.com/watch?v=VWUpyCsUKR4
20161221 https://www.youtube.com/watch?v=IbCHE-hONow