[Chapel Merge] Fixed Man Page Issues

Branch: refs/heads/master
Revision: 229f433
Author: bradcray
Log Message:

Merge pull request #17660 from shubhamkmr04/ManPageFix

Fixed Man Page Issues

[developed by @shubhamkmr04, reviewed by me]

This is the new PR (continuation of PR #17455) I have created for our Manpage issues with the clean commits.

This PR locally converts - to -- from flags of Manpage by not affecting the formatting of any other page, this (comment) raises the following issue.

These changes I made to locally change it to -- for only Manpage: