Hi Attached a diff to bring the disklabel man page up to date. Information taken directly from editor.c line 95.
Best, Martin Index: disklabel.8 =================================================================== RCS file: /cvs/src/sbin/disklabel/disklabel.8,v retrieving revision 1.138 diff -u -p -r1.138 disklabel.8 --- disklabel.8 19 Dec 2019 09:38:03 -0000 1.138 +++ disklabel.8 28 Jan 2020 17:42:08 -0000 @@ -529,7 +529,7 @@ and may vary from architecture to archit swap 10% of disk. 80M \(en 2x max physical memory /tmp 8% of disk. 120M \(en 4G /var 13% of disk. 80M \(en 2x size of crash dump -/usr 10% of disk. 1300M \(en 6G +/usr 10% of disk. 1500M \(en 6G /usr/X11R6 3% of disk. 384M \(en 1G /usr/local 15% of disk. 1G \(en 20G /usr/src 2% of disk. 1300M \(en 2G
