Switch to side-by-side view

--- a/src/filters/rclfb2
+++ b/src/filters/rclfb2
@@ -79,7 +79,7 @@
 
 checkcmds xsltproc
 
-xsltproc - "$infile" <<EOF
+xsltproc --nonet --novalid - "$infile" <<EOF
 <?xml version="1.0"?>
 <xsl:stylesheet version="1.0"
   xmlns:xsl="http://www.w3.org/1999/XSL/Transform"