init: Improving command line detection

In fact, "| x |" is as just correct as "|x|" while the latter didn't got
detected....

Fixing that in that patch as I search for 1 hour why my parameter wasn't
properly added at boot time :/
init: Fixing /run/lvm socket creation

commit 50b904c2eb7975e9cb3d2876dcd1b5226f63faf0 was perfectly wrong.

/run is mounted virtually to creating /run/lvm is useless.
So let's create it once /run is mounted, not before.