Sure.. or, make some comments about it being highly non-portable. It isn't even really a BSD'ism. The idea is a flop. I wonder if it was an attempt to pull a VMS idea.
> I'd like to make that plainer. It isn't the first time people > waste time reading sysexits(3) and arguing about it. > > OK? > Ingo > > > Index: sysexits.3 > =================================================================== > RCS file: /cvs/src/share/man/man3/sysexits.3,v > retrieving revision 1.12 > diff -u -r1.12 sysexits.3 > --- sysexits.3 30 Dec 2015 16:41:52 -0000 1.12 > +++ sysexits.3 11 Apr 2017 14:06:19 -0000 > @@ -40,7 +40,7 @@ > Some programs use defined error codes to distinguish between possible errors. > However, most programs in > .Ox > -do not. > +do not, and using these codes in additional programs is not recommended. > .Pp > The successful exit is always indicated by a status of 0, or > .Dv EX_OK . 1