The swauth tools did not handle an invalid admin_url, so it just failed
printing the stacktrace, which is not useful to end users.
This fix catches the exception and prints an error message that can
help user solve the issue.
Change-Id: I806c1cf191b5921e904b155f65cdbde5f2aac695
Signed-off-by: Thiago da Silva <thiago@redhat.com>
Reviewed-on: http://review.gluster.org/6431
Reviewed-by: Luis Pabon <lpabon@redhat.com>
Tested-by: Luis Pabon <lpabon@redhat.com>