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

pydir/utils.py

@@ -6,7 +6,10 @@ 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)

tests_lit/lit.cfg

@@ -87,6 +87,7 @@ iflc2i_atts_cmd = if_atts + [if_cond_flag('allow_llvm_ir_as_input'
 
 # Base command for running pnacl-sz
 pnacl_sz_cmd = [os.path.join(pydir, 'run-pnacl-sz.py'),
+                '--echo-cmd',
                 '--pnacl-sz', pnacl_sz_tool,
                 '--pnacl-bin-path', pnaclbinpath]
 if 'FORCEASM' in lit_config.params: