=== modified file 'dpkg-awk.awk'
--- dpkg-awk.awk	2012-02-28 14:41:59 +0000
+++ dpkg-awk.awk	2013-01-03 21:47:09 +0000
@@ -199,11 +199,13 @@
 }
 
 function my_sort(line, outf,
-	num_fields, sort_fields, c)
+	num_fields, c)
 {
 	qsort(0, line, 1, mtchs)
-	num_fields = split(options["sort"], sort_fields, " ,")
-	for (c = 1; c <= mtchs; c++){
+	num_fields = split(options["sort"], sort_fields, "[ ,]")
+        qsort(0, line, 1, mtchs)
+        delete sort_fields    
+        for (c = 1; c <= mtchs; c++){
 		my_split(line[c], fields)
 		my_outrec(fields, outf)
 	}