From af56e80a3c60e17859ae3b3daa5fc4b44754b667 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@datawire.io>
Date: Fri, 3 May 2019 15:03:21 -0400
Subject: fix-dpi: Add more comments

---
 .local/bin/fix-dpi | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/.local/bin/fix-dpi b/.local/bin/fix-dpi
index 251b0ad..ee0412d 100755
--- a/.local/bin/fix-dpi
+++ b/.local/bin/fix-dpi
@@ -1,8 +1,12 @@
 #!/usr/bin/env bash
 # Copyright 2019  Luke Shumaker
+#
+# Adjusts the xrandr 1.2, xrandr 1.3, and xrdb DPI settings according
+# to each output's current mode (pixel resolution) and self-reported
+# physical dimensions (mm).
 
 # env-var: MAX_DPI: integer
-# env-var: DRY_RUN: empty/non-empty
+# env-var: DRY_RUN: empty=false / non-empty=true
 
 ( # Phase 1: Probe outputs
 	export LC_ALL=C
-- 
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