tree ed7f43355f9edffeafeea1ce6668e14837a90c11
parent 3e57bc2a84887eb96b0f47ccbe39aa5624192b8b
author Jay Satiro <raysatiro@yahoo.com> 1706572630 -0500
committer Jay Satiro <raysatiro@yahoo.com> 1706679801 -0500

cd2nroff: use perl 'strict' and 'warnings'

- Use strict and warnings pragmas.

- If open() fails then show the reason.

- Set STDIN io layer :crlf so that input is properly read on Windows.

- When STDIN is used as input, the filename $f is now set to "STDIN".

Various error messages in single() use $f for the filename and this way
it is not undefined when STDIN.

Closes https://github.com/curl/curl/pull/12819