'what' doesn't use perror to print open errors, Sys V/3.0

[Doug Gwyn]

In article <3759 at sugar.hackercorp.com> karl at sugar.hackercorp.com (Karl Lehenbauer) writes:
>Several years have elapsed, which should have been long enough to make all
>the programs distributed with Unix follow the perror() conventions that
>the manuals tell us our programs are to follow.

(1) "what" uses fopen() to open the file.  perror() is inappropriate
except when a system call reports failure.  fopen() is not a system call.

(2) SCCS was developed long ago and hasn't been modernized.