x11-clocks/tclock: take maintainership
While here:
- switch to DISTVERSION
- add another MASTER_SITES
- add missing USE_XORG=xorgproto
- reorder variables to make portclippy happy
PR: 287309
Reported by: mew14930xvi <mew14930xvi@inbox.lv> (new maintainer)
MFH: 2025Q2