For your convenience, full patch is attached.
-- GPG: 4096R/1318EFAC5FBBDBCE git://github.com/infinity0/pubkeys.git
--- /usr/bin/xvfb-run 2015-03-04 17:16:14.751938799 +0100 +++ /usr/bin/xvfb-run 2015-03-04 17:05:43.967955334 +0100 @@ -140,7 +140,7 @@ fi # tidy up after ourselves -trap clean_up EXIT +trap clean_up EXIT INT QUIT TERM # If the user did not specify an X authorization file to use, set up a temporary # directory to house one. @@ -180,7 +180,7 @@ # Start the command and save its exit status. set +e -DISPLAY=:$SERVERNUM XAUTHORITY=$AUTHFILE "$@" 2>&1 +DISPLAY=:$SERVERNUM XAUTHORITY=$AUTHFILE "$@" 2>&1 & wait $! RETVAL=$? set -e