mxraid_assemble fails to assemble when in 'quiet' mode

[thomas]

The innocent looking addition of the if $VERBOSE >= 1 part in 2f0a179 effectively skips the system command when $VERBOSE is zero. Ashes on my head (... and going to write precedence rules on the blackboard).

The fun part is, that since the systemd update assembly has been taken over by udevd, so the bug could hide unnoticed for a while :)