Fix args to RunCommand

lib/cros_build_lib.py

 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Common python commands used by various build scripts."""
 
 import inspect
 import os
 import subprocess
 import sys
@@ skipping 36 matching lines @@
   output = ''
 
   # Modify defaults based on parameters.
   if redirect_stdout:  stdout = subprocess.PIPE
   if redirect_stderr:  stderr = subprocess.PIPE
   if input:  stdin = subprocess.PIPE
   if enter_chroot:  cmd = ['./enter_chroot.sh', '--'] + cmd
 
   # Print out the command before running.
   if print_cmd:
-    Info('PROGRAM(%s) -> RunCommand: %s in dir %s' %
-         (GetCallerName(), ' '.join(cmd), cwd))
+    Info('PROGRAM(%s) -> RunCommand: %r in dir %s' %
+         (GetCallerName(), cmd, cwd))
 
   try:
     proc = subprocess.Popen(cmd, cwd=cwd, stdin=stdin,
                             stdout=stdout, stderr=stderr)
     (output, error) = proc.communicate(input)
     if exit_code:
       return proc.returncode
 
     if not error_ok and proc.returncode:
-      raise Exception('Command "%s" failed.\n' % (' '.join(cmd)) +
+      raise Exception('Command "%r" failed.\n' % (cmd) +
                       (error_message or error or output or ''))
   except Exception, e:
     if not error_ok:
       raise
     else:
       Warning(str(e))
 
   return output
 
 
@@ skipping 83 matching lines @@
 
   # Strip the repository root from the path and strip first /.
   relative_path = path_abs_path.replace(root_abs_path, '')[1:]
 
   if relative_path == path_abs_path:
     raise Exception('Error: path is outside your src tree, cannot reinterpret.')
 
   new_path = os.path.join('/home', os.getenv('USER'), 'trunk', relative_path)
   return new_path