[rhythmbox] Fix typo in help

[Andre Klapper <aklapper src gnome org>]

commit 9573e894f519da24a62fb3a7335cf3956a37450b
Author: Andre Klapper <a9016009 gmx de>
Date:   Mon Jan 15 18:29:42 2018 +0100

    Fix typo in help

 help/C/index.docbook |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/help/C/index.docbook b/help/C/index.docbook
index 7a70d2e..99da517 100644
--- a/help/C/index.docbook
+++ b/help/C/index.docbook
@@ -239,8 +239,7 @@
             <para>Burn Audio CDs from playlists.</para>
           </listitem>
           <listitem>
-            <para>Transfer music to iPod, MTP and USB Mass Storage music players
-            .</para>
+            <para>Transfer music to iPod, MTP and USB Mass Storage music players.</para>
           </listitem>
         </itemizedlist>
   </sect1>