[_537] mention --help in usage

irods/test/setupssl.py

@@ -75,11 +75,12 @@ def test(options, args=()):
 def usage(exit_code = None):
 
     print("""Usage: {sys.argv[0]} [-f] [-h <hostname>] [-k] [-q] [-x <extension>] 
-    -f  Force replacement of the existing SSL directory (/etc/irods/ssl) with a new one, containing newly generated files.
-    -h  In the generated certificate, use the given hostname rather than the value returned from socket.gethostname()
-    -k  (Keep old secrets files.) Do not generate new key file or dhparams.pem file.
-    -q  For testing; do a quick generation of a dhparams.pem file rather than waiting on system entropy to make it more secure.
-    -x  Optional extra extension for appending to end of the filename for the generated certificate.
+    -f      Force replacement of the existing SSL directory (/etc/irods/ssl) with a new one, containing newly generated files.
+    -h      In the generated certificate, use the given hostname rather than the value returned from socket.gethostname()
+    -k      (Keep old secrets files.) Do not generate new key file or dhparams.pem file.
+    -q      For testing; do a quick generation of a dhparams.pem file rather than waiting on system entropy to make it more secure.
+    -x      Optional extra extension for appending to end of the filename for the generated certificate.
+    --help  Print this help.
 
     Any invalid option prints this help.
     """.format(**globals()), file = sys.stderr)