From 2a8f09a8c12246d52a3a0443b4bc9d87a632e98e Mon Sep 17 00:00:00 2001
From: Chris Martin <ch.martin@gmail.com>
Date: Mon, 11 Dec 2017 01:20:17 -0500
Subject: Add builtins.concatStringSep to the manual

---
 doc/manual/expressions/builtins.xml | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'doc/manual')

diff --git a/doc/manual/expressions/builtins.xml b/doc/manual/expressions/builtins.xml
index 5e88b8856..5a3a8645c 100644
--- a/doc/manual/expressions/builtins.xml
+++ b/doc/manual/expressions/builtins.xml
@@ -134,6 +134,14 @@ if builtins ? getEnv then builtins.getEnv "PATH" else ""</programlisting>
 
   </varlistentry>
 
+  <varlistentry><term><function>builtins.concatStringsSep</function>
+  <replaceable>separator</replaceable> <replaceable>list</replaceable></term>
+
+    <listitem><para>Concatenate a list of strings with a separator
+    between each element, e.g. <literal>concatStringsSep "/"
+    ["usr" "local" "bin"] == "usr/local/bin"</literal></para></listitem>
+
+  </varlistentry>
 
   <varlistentry
   xml:id='builtin-currentSystem'><term><varname>builtins.currentSystem</varname></term>
-- 
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