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Remount a partition in FreeBSD

Today I needed to remount the /tmp partition on a FreeBSD box, however without even thinking I typed:
mount -o remount,noexec /tmp
That obviously didn't work, cause it's a "linuxism".
What I needed to type is:
mount -u -o noexec /tmp
And voila!
It's a small, crappy tip, but the first results from google on the subject return incorrect ways of doing this.