Switch "A unbindable" to "An unbindable"
Reported-by: Regid Ichira <regid23@nt1.in>
Signed-off-by: Phillip Susi <psusi@ubuntu.com>
private, slave or unbindable. A shared mount provides ability to create mirrors
of that mount such that mounts and umounts within any of the mirrors propagate
to the other mirror. A slave mount receives propagation from its master, but
-any not vice-versa. A private mount carries no propagation abilities. A
+any not vice-versa. A private mount carries no propagation abilities. An
unbindable mount is a private mount which cannot be cloned through a bind
operation. Detailed semantics is documented in
.B Documentation/filesystems/sharedsubtree.txt