https://bugzilla.redhat.com/show_bug.cgi?id=1250287
When run domfsinfo in quiet mode, we cannot get any
useful information (just get \n), this is because
we didn't use vshPrint to print useful information.
Signed-off-by: Luyao Huang <lhuang@redhat.com>
(cherry picked from commit ee6160b549568133d904aa27a553d66f0b0c01d3)