From 772ef22c25f6dac969ce7f13586a08d1191f4a44 Mon Sep 17 00:00:00 2001
From: Robert Vollmert <rob@vllmrt.net>
Date: Fri, 7 Jul 2017 21:51:54 +0200
Subject: [PATCH] man page (nix-instantiate): -E is optional

---
 doc/manual/command-ref/nix-instantiate.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/manual/command-ref/nix-instantiate.xml b/doc/manual/command-ref/nix-instantiate.xml
index 874228954..39c1282fc 100644
--- a/doc/manual/command-ref/nix-instantiate.xml
+++ b/doc/manual/command-ref/nix-instantiate.xml
@@ -39,7 +39,7 @@
     </arg>
     <arg><option>--add-root</option> <replaceable>path</replaceable></arg>
     <arg><option>--indirect</option></arg>
-    <group choice='req'>
+    <group>
       <arg choice='plain'><option>--expr</option></arg>
       <arg choice='plain'><option>-E</option></arg>
     </group>