don't fail if nslookup is not found

When nslookup is not available, execution would stop. This patch moves the
check for nslookup and the _get_fqdn function into the ./new script (since
this is the only place where it's used) and we don't fail any more but try
to find out our FQDN without nslookup.

Signed-off-by: Christian Kujau <lists@nerdbynature.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>

common.rc

@@ -330,14 +330,6 @@ _get_pids_by_name()
 	-e "/[0-9]:[0-9][0-9]  *$1 /s/ .*//p"
 }
 
-# fqdn for localhost
-#
-_get_fqdn()
-{
-    host=`hostname`
-    $NSLOOKUP_PROG $host | $AWK_PROG '{ if ($1 == "Name:") print $2 }'
-}
-
 # fix malloc libs output
 #
 _fix_malloc()