renamed abc_sample to abc.sample

lam/docs/manual-sources/howto.xml

@@ -449,8 +449,8 @@ Have fun!
         <section>
           <title>Configuration files</title>
 
-          <para>Copy config/config.cfg_sample to config/config.cfg and
-          config/lam.conf_sample to config/lam.conf. Open the index.html in
+          <para>Copy config/config.cfg.sample to config/config.cfg and
+          config/lam.conf.sample to config/lam.conf. Open the index.html in
           your web browser:</para>
 
           <itemizedlist>