tashi-admin: add example text for sethostnotes

git-svn-id: https://svn.apache.org/repos/asf/incubator/tashi/trunk@1366277 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/tashi/client/tashi-admin.py b/src/tashi/client/tashi-admin.py
index 1d3cb08..fca82bb 100755
--- a/src/tashi/client/tashi-admin.py
+++ b/src/tashi/client/tashi-admin.py
@@ -100,7 +100,7 @@
 	parser = optparse.OptionParser()
 	parser.set_usage("%s setHostNotes [options]" % scriptname)
 	parser.add_option("--host", help="Annotate this host with the note (mandatory)", action="store", type="string", dest="hostname")
-	parser.add_option("--notes", help="Annotate the host with this note (mandatory)", action="store", type="string", dest="notes")
+	parser.add_option("--notes", help="Annotate the host with this note, e.g. 'Check fan' (mandatory)", action="store", type="string", dest="notes")
 	(options, arguments) = parser.parse_args(args)
 	if options.hostname is None or options.notes is None:
 		print "A mandatory option is missing\n"