Bug#765828: x11-utils: xprop -spy leaks memory

[DesDZ <desdz666@gmail.com>]

This bug still bites... Hard !

Here's a workaround. Open the file /usr/bin/start-pulseaudio-x11, and
replace the line :

        /usr/bin/xprop -root -spy > /dev/null 2>&1 || true
with
        /usr/bin/xprop -root -spy WM_____ > /dev/null 2>&1 || true

This tells xprop to "spy" on an non-existent property and won't store
anything to memory.

Still, xprop should definitely be fixed, because this is DIRTY, and will
most probably not survive a pulseaudio upgrade.