HCOLL: make it OFF by default

fixed by miked, reviewed by Alex

cmr=v1.8.2:reviewer=ompi-rm1.8

This commit was SVN r32101.

ompi/mca/coll/hcoll/coll_hcoll_component.c

@@ -190,20 +190,20 @@ static int hcoll_register(void)
 
     CHECK(reg_int("enable",NULL,
                   "[1|0|] Enable/Disable HCOL",
-                  1 /*enable by default*/,
+                  0 /*disable by default*/,
                   &mca_coll_hcoll_component.hcoll_enable,
                   0));
 
     CHECK(reg_int("np",NULL,
                   "Minimal number of processes in the communicator"
                   " for the corresponding hcoll context to be created (default: 32)",
-                  2 /*enable by default*/,
+                  2, 
                   &mca_coll_hcoll_component.hcoll_np,
                   0));
 
     CHECK(reg_int("datatype_fallback",NULL,
                   "[1|0|] Enable/Disable user defined dattypes fallback",
-                  1 /*enable by default*/,
+                  1, 
                   &mca_coll_hcoll_component.hcoll_datatype_fallback,
                   0));