Recognize messages on the form "nfs: server foo OK".

check_nfs_server

@@ -19,7 +19,7 @@ import sys
 import re
 
 bad_re = re.compile("(NFS|nfs:) server (?P<server>[^ ]*) not responding")
-good_re = re.compile("NFS server (?P<server>[^ ]*) (ok|OK)")
+good_re = re.compile("(NFS|nfs:) server (?P<server>[^ ]*) (ok|OK)")
 time_re = re.compile("((?P<year>[1-9][0-9]{3})-"
                      "(?P<mon>[0-9]{2})-"
                      "(?P<day>[0-9]{2}) "