Bug#1072490: xrandr.1: some remarks and editorial changes for this man page

[Alan Coopersmith]

Control: tags 1072490 fixed-upstream

The provided patch has been merged upstream in
https://gitlab.freedesktop.org/xorg/app/xrandr/-/commit/33d45ad1863bf3f9e7d92777172753deb2a947e6

--
        -Alan Coopersmith-                 alan.coopersm...@oracle.com
         Oracle Solaris Engineering - https://blogs.oracle.com/solaris