OpenBSD: compatibility fixes for the build system.

build/linux/python_arch.sh

Index: build/linux/python_arch.sh
===================================================================
--- build/linux/python_arch.sh	(revision 81277)
+++ build/linux/python_arch.sh	(working copy)
@@ -1,5 +1,5 @@
-#!/bin/bash
-# Copyright (c) 2010 The Chromium Authors. All rights reserved.
+#!/bin/sh
+# Copyright (c) 2011 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.
 
@@ -13,12 +13,12 @@
 python=$(readlink -f "$1")
 if [ ! -r "$python" ]; then
   echo unknown
-  exit 0;
+  exit 0
 fi
 file_out=$(file "$python")
 if [ $? -ne 0 ]; then
   echo unknown
-  exit 0;
+  exit 0
 fi
 
 echo $file_out | grep -qs "ARM"