fsck: fix typo in fsck mount point support
fsck: fix typo in fsck mount point support

Previous commit e3b39a677b535bc2 missed adding a "[" to one of the tests.

Reported-by: Torsten Veller <9411d054e5f081fe917a1de121f65ce0ebf4a870@gentoo.org>
x-Gentoo-Bug: 391941
x-Gentoo-Bug-URL: http://bugs.gentoo.org/391941
Signed-off-by: Mike Frysinger <8f3f75c74bd5184edcfa6534cab3c13a00a2f794@gentoo.org>

dwfreed/openrc,williamh/openrc,williamh/openrc,dwfreed/openrc,OpenRC/openrc,OpenRC/openrc,dwfreed/openrc,williamh/openrc,OpenRC/openrc