lvresize resizes an LV in the same way as lvextend and lvreduce. See
\fBlvextend\fP(8) and \fBlvreduce\fP(8) for more information.

In the usage section below, \fB--size\fP \fISize\fP can be replaced
with \fB--extents\fP \fINumber\fP.  See both descriptions
the options section.
