Cleanup sanitize build sed and sh scripts.

build/sanitize-win-build-log.sed

Index: build/sanitize-win-build-log.sed
diff --git a/build/sanitize-win-build-log.sed b/build/sanitize-win-build-log.sed
old mode 100755
new mode 100644
index ce5165422d6da66faeb3b5a138c2fa7480b2853c..4691b76a63ecc56ace404b629192cd3e3c5e178d
--- a/build/sanitize-win-build-log.sed
+++ b/build/sanitize-win-build-log.sed
@@ -1,5 +1,3 @@
-#!/bin/echo Use sanitize-win-build-log.sh or sed -f
-
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
@@ -11,8 +9,8 @@
 /The operation completed successfully\./d
 
 # Drop parallelization indicators on lines.
-s/^[0-9]\+>//
+s/^[0-9]+>//
 
 # Shorten bindings generation lines
-s/^.*"\(perl\|[^"]\+perl\.exe\)".*deprecated_generate_bindings\.pl".*\("[^"]\+\.idl"\).*$/  deprecated_generate_bindings \2/
-s/^.*"python".*idl_compiler\.py".*\("[^"]\+\.idl"\).*$/  idl_compiler \1/
+s/^.*"(perl|[^"]+perl\.exe)".*deprecated_generate_bindings\.pl".*("[^"]+\.idl").*$/  deprecated_generate_bindings \2/
+s/^.*"python".*idl_compiler\.py".*("[^"]+\.idl").*$/  idl_compiler \1/