quota option in mount

[Guy Harris]

>at boot time mount complains: "WARNING unknown options quota"...

Yes.  Pipe the output of "mount" to

	egrep -v "WARNING unknown options quota"

Quotas really do work in 4.0; they just provoke some noise from "mount".
Quotas are NOT turned on by "mount", they are turned on by "quotaon";
"quotaon" does handle the "quota" option.  "quotaon" also updates
"/etc/mtab" so that "mount -p" should show that quotas are on.