* Fix spelling/wording issues
* man: strip trailing whitespace
* gitlab CI: add a basic build test
* man pages: Make file names consistent with their displayed names
* man pages: Fix shadow man pages
* man pages: Make function synopses more consistent with other pages
* man pages: Add missing word 'function' where needed
* man pages: Fix typos
* man pages: Correct Copyright/License notices
* add man pages based on doc/xpm.PS
* update man pages
OBS-URL: https://build.opensuse.org/package/show/X11:XOrg/libXpm?expand=0&rev=16
