LU-3386 lproc: fix "imports" output format

LU-3386 lproc: fix "imports" output format

There was no comma being printed in the import flags listing since
commit 62660c799b because the "first" marker wasn't being set false.

Fix the output format to put a space around the '[' and ']' list
delimiters.

Make the "unknown" connect flag be a single word.

Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: James Simmons <uja.ornl@gmail.com>
Change-Id: Iee725b503ec771773d456b3436480c6e52500c1e
Reviewed-on: http://review.whamcloud.com/10344
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Tested-by: Jenkins
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>