[PRQ#53736] Merge Request for xavs-svn

MarsSeed [1] filed a request to merge xavs-svn [2] into xavs2-git [3]: The original xavs{,-svn} is EOL since 2011 and broken. Superseded by xavs2{,-git}. Both the non-git and git packages of the latter are maintained on AUR by @dbermond. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/xavs-svn/ [3] https://aur.archlinux.org/pkgbase/xavs2-git/