Fix g++ parameters order. gcc 4.6+ requires the libraries to be placed...

Fix g++ parameters order. gcc 4.6+ requires the libraries to be placed (correctly) at the end after the object files are listed.
(reported on the forum: http://root.cern.ch/phpBB3/viewtopic.php?t=14289)


git-svn-id: http://root.cern.ch/svn/root/trunk@43244 27541ba8-7e3a-0410-8455-c3a389f83636

docbook/users-guide/WritingGUI.xml

@@ -232,7 +232,7 @@ fMain->MapWindow();
 <code>We compile the example:</code></para>
 
 <programlisting language="c++">rootcint -f ex2aDict.cxx -c example2a.h ex2aLinkDef.h
-g++ `root-config --cflags --glibs` -o example2a example2a.cxx ex2aDict.cxx
+g++ -o example2a example2a.cxx ex2aDict.cxx `root-config --cflags --glibs`
 </programlisting>
 
 <para>