fix accumulated whitespace and indentation damage
diff --git a/docs/cgi/interface.html b/docs/cgi/interface.html
index 33f0288..ea73ce3 100644
--- a/docs/cgi/interface.html
+++ b/docs/cgi/interface.html
@@ -12,7 +12,7 @@
 the following is a hotlink to graphic detail.</p><p>
 
 </p><ul>
-<li> <a href="env.html">Environment variables</a> 
+<li> <a href="env.html">Environment variables</a>
 </li><li> <a href="cl.html">The command line</a>
 </li><li> <a href="in.html">Standard input</a>
 </li><li> <a href="out.html">Standard output</a>