Subzero: Always enable --echo-cmd in the lit tests.

pydir/utils.py

 import os
 import subprocess
 import sys
 
 def shellcmd(command, echo=True):
     if not isinstance(command, str):
         command = ' '.join(command)
 
-    if echo: print '[cmd]', command
+    if echo:
+      print >> sys.stderr, '[cmd]'
+      print >> sys.stderr,  command
+      print >> sys.stderr
 
     stdout_result = subprocess.check_output(command, shell=True)
     if echo: sys.stdout.write(stdout_result)
     return stdout_result
 
 def FindBaseNaCl():
     """Find the base native_client/ directory."""
     nacl = 'native_client'
     path_list = os.getcwd().split(os.sep)
     """Use the executable path if cwd does not contain 'native_client' """
     path_list = path_list if nacl in path_list else sys.argv[0].split(os.sep)
     if nacl not in path_list:
         print "Script must be executed from within 'native_client' directory"
         exit(1)
     last_index = len(path_list) - path_list[::-1].index(nacl)
     return os.sep.join(path_list[:last_index])
 
 def get_sfi_string(args, sb_ret, nonsfi_ret, native_ret):
     """Return a value depending on args.sandbox and args.nonsfi."""
     if args.sandbox:
         assert(not args.nonsfi)
         return sb_ret
     if args.nonsfi:
         return nonsfi_ret
     return native_ret