mount: Sanitize mounts_equal helper
mount: Sanitize mounts_equal helper

* Split into two -- full/sb comparisons
* Code formatting (spaces)
* Arg names

Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@parallels.com>
Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@virtuozzo.com>

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