Bug#720266: x11-apps: xman aborts closing search window

[Alan Coopersmith <alan.coopersmith@oracle.com>]

This is because xman was not installing a WM_DELETE_WINDOW handler for the
search window, so window managers fall back to XKillClient() to shut down
the entire program when the close button is clicked.

Upstream fix: https://gitlab.freedesktop.org/xorg/app/xman/-/merge_requests/6

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