Reconnect the opal dss debug envar with the debug output

This commit was SVN r18759.

opal/dss/dss_open_close.c

@@ -28,7 +28,6 @@
  * globals
  */
 bool opal_dss_initialized = false;
-bool opal_dss_debug = false;
 int opal_dss_verbose = -1;  /* by default disabled */
 int opal_dss_initial_size;
 int opal_dss_threshold_size;
@@ -147,9 +146,7 @@ int opal_dss_open(void)
 
     enviro_val = getenv("OPAL_dss_debug");
     if (NULL != enviro_val) {  /* debug requested */
-        opal_dss_debug = true;
+        opal_dss_verbose = 0;
-    } else {
-        opal_dss_debug = false;
     }
 
     /** set the default buffer type. If we are in debug mode, then we default

opal/dss/dss_unpack.c

@@ -105,6 +105,7 @@ int opal_dss_unpack_buffer(opal_buffer_t *buffer, void *dst, int32_t *num_vals,
         }
         /* if the data types don't match, then return an error */
         if (type != local_type) {
+            opal_output(0, "OPAL dss:unpack: got type %d when expecting type %d", local_type, type);
             return OPAL_ERR_PACK_MISMATCH;
         }
     }