From a64bdda9ae42ff39543fcfe16d70c4e064780e92 Mon Sep 17 00:00:00 2001
From: Mihai Bazon <mihai@bazon.net>
Date: Sun, 28 Sep 2014 12:36:36 +0300
Subject: [PATCH] Document `keep_fargs`.  Close #557

---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index c60a124d..f4d82ace 100644
--- a/README.md
+++ b/README.md
@@ -256,6 +256,10 @@ to set `true`; it's effectively a shortcut for `foo=true`).
 - `drop_console` -- default `false`.  Pass `true` to discard calls to
   `console.*` functions.
 
+- `keep_fargs` -- default `false`.  Pass `true` to prevent the
+  compressor from discarding unused function arguments.  You need this
+  for code which relies on `Function.length`.
+
 ### The `unsafe` option
 
 It enables some transformations that *might* break code logic in certain
-- 
2.34.1