From df614a9bdc3e4495197415192d4e69f890b6ae20 Mon Sep 17 00:00:00 2001
From: Markus Armbruster <armbru@pond.sub.org>
Date: Sun, 5 Jan 2014 10:23:47 +0100
Subject: [PATCH] tests: Document log file normalization a bit better

Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
---
 tests/normalize.pl | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tests/normalize.pl b/tests/normalize.pl
index efdeae91..f2b2fd65 100755
--- a/tests/normalize.pl
+++ b/tests/normalize.pl
@@ -31,16 +31,18 @@ sub norm_ctime {
 while (<>) {
     chomp;
 
-    my $pfx = '';
-
+    # Strip log timestamp
     if ($opt_j || $opt_s) {
 	die "$0: malformed line" unless /^$ctime_re /;
 	$_ = substr($_, 25);
     }
 
+    # Split off prefix that is not to be normalized
+    my $pfx = '';
     if ($opt_j) {
 	die "$0: malformed line" unless substr($_, 10, 1) eq ' ';
 	$pfx .= substr($_, 0, 11);
+	# Normalize only player output
 	$_ = substr($_, 11);
 	if (/(^output [^ ]* 1 )(.*)/) {
 	    $pfx .= $1;