Clarify whether configuration items of apt.conf are case-sensitive

debian/changelog

@@ -13,6 +13,9 @@ apt (0.7.17~exp1) UNRELEASED; urgency=low
       + cmdline/makefile
       + ftparchive/makefile
       + methods/makefile
+  * doc/apt.conf.5.xml:
+    - clarify whether configuration items of apt.conf are case-sensitive
+      (thanks to Vincent McIntyre, closes: #345901)
 
  -- Luca Bruno <lethalman88@gmail.com>  Sat, 11 Oct 2008 09:17:46 +0200
 

doc/apt.conf.5.xml

@@ -75,6 +75,9 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";};
    <filename>&docdir;examples/apt.conf</filename> &configureindex;
    is a good guide for how it should look.</para>
 
+   <para>The names of the configuration items are not case-sensitive. So in the previous example
+   you could use <literal>dpkg::pre-install-pkgs</literal>.</para>
+
    <para>Two specials are allowed, <literal>#include</literal> and <literal>#clear</literal> 
    <literal>#include</literal> will include the given file, unless the filename
    ends in a slash, then the whole directory is included.