btl/vader: Fix typo in add_procs introduced by the btl move

This commit was SVN r32342.

opal/mca/btl/vader/btl_vader_module.c

@@ -286,7 +286,7 @@ static int vader_add_procs (struct mca_btl_base_module_t* btl,
     }
 
     /* make sure that my local rank has been defined */
-    if (0 <= MCA_BTL_VADER_LOCAL_RANK) {
+    if (0 > MCA_BTL_VADER_LOCAL_RANK) {
         return OPAL_ERROR;
     }