[gnome-terminal] docs: Documen the umlimited scrollback pref

[Christian Persch <chpe src gnome org>]

commit c0927437b2dd72fe4d2a2831c8bf0c89d2eed63e
Author: Richard Bradshaw <richb fastmail co uk>
Date:   Tue Aug 21 09:56:04 2012 +0100

    docs: Documen the umlimited scrollback pref
    
    Document that selecting the unlimited option in Scrolling->Scrollback
    removes the limit on the number of lines you can scroll back.
    
    Bug #682336.

 help/C/index.docbook |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/help/C/index.docbook b/help/C/index.docbook
index 96b316f..4979d26 100644
--- a/help/C/index.docbook
+++ b/help/C/index.docbook
@@ -1088,7 +1088,7 @@ text-based commands through a shell such as Bash.
                 <guilabel>Scrollback ... lines</guilabel> </term> 
              <listitem> 
                 <para>
-                  Use this spin box to specify the number of lines that you can scroll back using the scrollbar. For example, if you specify 100 you can scroll back the last 100 lines displayed in the terminal. 
+                  Use this spin box to specify the number of lines that you can scroll back using the scrollbar. For example, if you specify 100 you can scroll back the last 100 lines displayed in the terminal. Select the Unlimited option to remove the limit on the number of lines you can scroll back using the scrollbar. 
                 </para>
              </listitem> 
           </varlistentry>