odls_default: do not opal_output() while creating a process!

It is verbotten to use opal_output() after the fork() but before the
exec()!  It results in all manner of undefined behavior.  For example,
on some OS X systems, if you run a trivial "hello world" MPI program
with a high level of ODLS verbosity:

```sh
$ mpirun -np 3 --mca odls_base_verbose 100 ./hello_c
```

You will see a bunch of output from the mpirun ODLS base, but then it
*may* hang in odls_default_module.c:do_child() -- after the fork() but
before the exec() -- while trying to opal_output() some debugging
statements.

The solution is to remove these extraneous opal_output() statements.
Indeed, the ODLS base is already outputting the same information that
these opal_output() statements are trying to emit, anyway.

Signed-off-by: Jeff Squyres <[email protected]>

(cherry picked from commit open-mpi/ompi@dd9a819)

Author: jsquyres

orte/mca/odls/default/odls_default_module.c

@@ -11,7 +11,7 @@
  *                         All rights reserved.
  * Copyright (c) 2007-2010 Oracle and/or its affiliates.  All rights reserved.
  * Copyright (c) 2007      Evergrid, Inc. All rights reserved.
- * Copyright (c) 2008-2013 Cisco Systems, Inc.  All rights reserved.
+ * Copyright (c) 2008-2016 Cisco Systems, Inc.  All rights reserved.
  * Copyright (c) 2010      IBM Corporation.  All rights reserved.
  * Copyright (c) 2011-2013 Los Alamos National Security, LLC.  All rights
  *                         reserved.
@@ -717,17 +717,6 @@ static int do_child(orte_app_context_t* context,
 
     /* Exec the new executable */
 
-    if (10 < opal_output_get_verbosity(orte_odls_base_framework.framework_output)) {
-        int jout;
-        opal_output(0, "%s STARTING %s", ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), context->app);
-        for (jout=0; NULL != context->argv[jout]; jout++) {
-            opal_output(0, "%s\tARGV[%d]: %s", ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), jout, context->argv[jout]);
-        }
-        for (jout=0; NULL != environ_copy[jout]; jout++) {
-            opal_output(0, "%s\tENVIRON[%d]: %s", ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), jout, environ_copy[jout]);
-        }
-    }
-    
     execve(context->app, context->argv, environ_copy);
     send_error_show_help(write_fd, 1, 
                          "help-orte-odls-default.txt", "execve error",