nselib stdnse.print_debug -> stdnse.debug

$ f() { find -name \*.lua -exec /bin/echo sed -i "$1" {} \; ; }
$ f 's/stdnse.print_debug( *\([0-9]*\) *, */stdnse.debug\1(/'
$ f 's/stdnse.print_debug( *"\(.*\))/stdnse.debug1("\1)/'

nselib/ipp.lua

@@ -267,7 +267,7 @@ IPP = {
         end
 
         if ( not(group) ) then
-          stdnse.print_debug(2, "Unexpected tag: %d", tag)
+          stdnse.debug2("Unexpected tag: %d", tag)
           return
         end