From 3af3362b75c43f9f5d195cfe935f8ecf85b6aaaa Mon Sep 17 00:00:00 2001
From: "J.C. Jones" <jc@mozilla.com>
Date: Tue, 9 Jun 2020 14:11:07 -0700
Subject: [PATCH] Add clarification to how prefs work

---
 tlscanary/modes/basemode.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tlscanary/modes/basemode.py b/tlscanary/modes/basemode.py
index bcbdb05..c3cc71d 100644
--- a/tlscanary/modes/basemode.py
+++ b/tlscanary/modes/basemode.py
@@ -75,6 +75,9 @@ class BaseMode(object):
                            help="OneCRL-Tools git branch, tag, or commit to use (default: stable)",
                            action="store",
                            default=os.environ.get("ONECRLPIN", "stable"))
+        group = parser.add_argument_group(title="preferences", description="Preferences are of the form "
+                                          + "'key;value' and one per argument. Use multiple --pref* calls"
+                                          + " to set additional preferences.")
         group.add_argument("-p", "--prefs",
                            help="Prefs to apply to all builds",
                            type=str,