In some environments, "showmount" could return an NFS-client that does
not start with "1". This would cause the test-case to fail. The check is
incorrect, the number of lines should get counted instead.

Also moving the test-case to the .../nfs/... subdirectory.

BUG: 1166862
Change-Id: Ic03aa8145ca57d78aea01564466e924b03bb302a
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/10419
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

When there are many NFS-clients doing very often mount/unmount actions,
the updating of the 'rmtab' can become a bottleneck and cause delays. In
these situations, the output of 'showmount' may be less important than
the responsiveness of the (un)mounting.

By setting 'nfs.mount-rmtab' to the value "/-", the cache file is not
updated anymore, and the entries are only kept in memory.

BUG: 1169317
Change-Id: I40c4d8d754932f86fb2b1b2588843390464c773d
Reported-by: Cyril Peponnet <cyril@peponnet.fr>
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/9223
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: soumya k <skoduri@redhat.com>
Reviewed-by: jiffin tony Thottan <jthottan@redhat.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>