Modify the expected outcome of test 012 so that it passes when bibtex is
not in the path, as we do not wish to add texlive as an input just for this
test.

diff -u -r doxygen-1.8.7.orig/testing/012/citelist.xml doxygen-1.8.7/testing/012/citelist.xml
--- doxygen-1.8.7.orig/testing/012/citelist.xml	2014-04-24 23:43:34.000000000 +0200
+++ doxygen-1.8.7/testing/012/citelist.xml	2014-04-24 23:49:43.000000000 +0200
@@ -4,17 +4,6 @@
     <compoundname>citelist</compoundname>
     <title>Bibliography</title>
     <detaileddescription>
-      <para>
-        <variablelist>
-          <varlistentry>
-            <term><anchor id="_1CITEREF_knuth79"/>[1]</term>
-          </varlistentry>
-          <listitem>
-            <para>Donald<nonbreakablespace/>E. Knuth. <emphasis>Tex and Metafont, New Directions in Typesetting</emphasis>. American Mathematical Society and Digital Press, Stanford, 1979.</para>
-            <para/>
-          </listitem>
-        </variablelist>
-      </para>
     </detaileddescription>
   </compounddef>
 </doxygen>
diff -u -r doxygen-1.8.7.orig/testing/012/indexpage.xml doxygen-1.8.7/testing/012/indexpage.xml
--- doxygen-1.8.7.orig/testing/012/indexpage.xml	2014-04-24 23:43:34.000000000 +0200
+++ doxygen-1.8.7/testing/012/indexpage.xml	2014-04-24 23:44:05.000000000 +0200
@@ -4,7 +4,7 @@
     <compoundname>index</compoundname>
     <title>My Project</title>
     <detaileddescription>
-      <para>See <ref refid="citelist_1CITEREF_knuth79" kindref="member">[1]</ref> for more info. </para>
+      <para>See knuth79 for more info. </para>
     </detaileddescription>
   </compounddef>
 </doxygen>