More beautification of the generated script

git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@4779 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb

Shorewall/compiler

@@ -4907,12 +4907,20 @@ __EOF__
 }
 
 #
-# Post-process generated script
+# Post-process generated script to:
+#
+#       - Suppress redundant blank lines
+#       - Replace leading spaces with tabs
 #
 mycat() 
 {
-    if [ -n "$(mywhich awk)" ]; then
+    local awk=$(mywhich awk)
-	awk 'BEGIN {blnk=0;}; /^\s*$/ {blnk=1; next; }; { if (blnk == 1 ) { print ""; blnk=0; }; print; }' $*
+
+    if [ -n "$awk" ]; then
+	$awk 'BEGIN   {blnk=0;}; \
+              /^\s*$/ {blnk=1; next; }; \
+                      { while (/^\t*        /) sub(/        /, "\t"   ); }; \
+                      { if (blnk == 1 ) { print ""; blnk=0; }; print; }' $*
     else
 	cat $*
     fi