4c4
< #View gzipped files with 'more'
---
> # View gzipped files with 'more' filter.
6,8c6,8
< NOARGS=65
< NOTFOUND=66
< NOTGZIP=67
---
> E_NOARGS=65
> E_NOTFOUND=66
> E_NOTGZIP=67
15c15
<   exit $NOARGS
---
>   exit $E_NOARGS
23,25c23,24
<   echo "File $filename not found!" >&2
<   # Error message to stderr.
<   exit $NOTFOUND
---
>   echo "File $filename not found!" >&2   # Error message to stderr.
>   exit $E_NOTFOUND
32c31
<   exit $NOTGZIP
---
>   exit $E_NOTGZIP
37,39c36,37
< # Uses the filter 'more.'
< # May substitute 'less', if desired.
< 
---
> # Uses the 'more' filter.
> # May substitute 'less' if desired.
42,43c40,41
< # Actually "exit $?" is unnecessary, as the script will, in any case,
< # return the exit status of the last command executed.
---
> #  Actually "exit $?" is unnecessary, as the script will, in any case,
> #+ return the exit status of the last command executed.