fangly/io-pager — comment on commit 02d0e79d6e999539a89f48b60c3c118de8fe3310
File:  line 0
By fangly:

I actually thought that Perl would try to interpolate to $ENV instead of $ENV{PAGER}. I was mistaken. However, as you can notice in a later commit, this statement was changed to something like:
```
warn "Could not pipe to \$PAGER ('$PAGER'): $!\n";
```
which in practice would result in warning messages such as:
```
Could not pipe to $PAGER ('/usr/bin/less'): ...
```
or (if PAGER is not set):
```
Could not pipe to $PAGER (''): ...
```
I believe you'll agree that this is a properly informative warning message.