Hi,
please find below a patch for tails-greeter - README.translators.
Hoping that's correct,
Greetings>From 96df0d90886892ab445fe29d08dc18d20098b68f Mon Sep 17 00:00:00 2001
From: Debian Live user <amnesia@amnesia.(none)>
Date: Sat, 6 Oct 2012 16:19:54 +0000
Subject: [PATCH] [doc] Add requirement : python-distutils-extra
---
 README.translators |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/README.translators b/README.translators
index 9cdae7c..2d464f1 100644
--- a/README.translators
+++ b/README.translators
@@ -14,6 +14,8 @@ CREATING A NEW TRANSLATION
 
 1. Generate an uptodate template of translatable strings
 
+This requires the installation of python-distutils-extra.
+
 In sources root, execute: 
 
     ./setup.py build_i18n
@@ -40,6 +42,8 @@ UPDATE AN EXISTING TRANSLATION
 
 1. Generate an uptodate template of translatable strings
 
+This requires the installation of python-distutils-extra.
+
 In sources root, execute:
 
     ./setup.py build_i18n
-- 
1.7.2.5