--- a/roundup/scripts/roundup_mailgw.py	Mon Mar 30 11:55:23 2026 -0400
+++ b/roundup/scripts/roundup_mailgw.py	Thu Apr 02 12:26:13 2026 -0400
@@ -156,13 +156,14 @@
     cmd.add_argument('-c', '--default-class', default='',
         help="Default class of item to create (else the tracker's "
         "MAILGW_DEFAULT_CLASS)")
+    cmd.add_argument('-S', '--set-value', action='append',
+        help="Set additional properties for classes. Format of SET_VALUE: '[class.]property=value[;property=value]'. Class defaults to DEFAULT_CLASS.", default=[])
     cmd.add_argument('-O', '--oauth-directory',
-        help='Directory with OAUTH credentials, default "oauth" in '
+        help='Directory with OAUTH credentials, default "oauth/" in '
         'tracker home')
-    cmd.add_argument('-S', '--set-value', action='append',
-        help="Set additional properties on some classes", default=[])
     cmd.add_argument('-T', '--oauth-token-endpoint',
-        help="OAUTH token endpoint for access_token renew, default=%(default)s",
+        help="URL of the OAUTH token endpoint when renewing access_token, "
+            "default=%(default)s",
         default='https://login.microsoftonline.com/'
             'organizations/oauth2/v2.0/token')
     return cmd, cmd.parse_args(argv)