helpers/wayland_wrapper: Bump the buffer size for display_name
The compiler prints the following warning at the moment:
wl-socket.c:143:9: note: ‘snprintf’ output between 10 and 20 bytes into a destination of size 16The compiler prints the following warning at the moment:
wl-socket.c:143:9: note: ‘snprintf’ output between 10 and 20 bytes into a destination of size 16