On Tue, Sep 19, 2017 at 10:42 AM, Larry McVoy <lm@mcvoy.com> wrote:
slib.c:1653 (bk-7.3): open failed: permission denied

which is way way way more useful than just permission denied.
​And just as easy to use for the programmer... which is why it make so much sense.​
 
​This ​
is an example of what I mean by "good taste."​