[system-tools-backends-clone] Bug 590239 - Fix distro detection in users to use proper variant of useradd

[Milan Bouchet-Valat <milanbv src gnome org>]

commit a76bb71d19b11d151c099e2fb6a6a677817d5a2a
Author: Jeremy Guitton <debotux free fr>
Date:   Wed Aug 19 01:00:20 2009 +0200

    Bug 590239 - Fix distro detection in users to use proper variant of useradd
    
    Used by Gentoo for a long time.

 Users/Users.pm |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/Users/Users.pm b/Users/Users.pm
index 6703d0f..bd0603a 100644
--- a/Users/Users.pm
+++ b/Users/Users.pm
@@ -591,7 +591,8 @@ sub add_user
     if ($cmd_adduser &&
         $Utils::Backend::tool{"platform"} !~ /^slackware/ &&
         $Utils::Backend::tool{"platform"} !~ /^archlinux/ &&
-        $Utils::Backend::tool{"platform"} !~ /^redhat/)
+        $Utils::Backend::tool{"platform"} !~ /^redhat/ &&
+        $Utils::Backend::tool{"platform"} !~ /^gentoo/)
     {
       # use adduser if available and valid (slackware one is b0rk)
       # set empty gecos fields and password, they will be filled out later