Fix compiler warning

This commit was SVN r21312.

ompi/mca/btl/tcp/btl_tcp_proc.c

@@ -131,7 +131,7 @@ mca_btl_tcp_proc_t* mca_btl_tcp_proc_create(ompi_proc_t* ompi_proc)
         return NULL;
     }
     if(0 != (size % sizeof(mca_btl_tcp_addr_t))) {
-        BTL_ERROR(("mca_base_modex_recv: invalid size %lu: btl-size: %ld\n",
+        BTL_ERROR(("mca_base_modex_recv: invalid size %lu: btl-size: %lu\n",
           (unsigned long) size, sizeof(mca_btl_tcp_addr_t)));
         return NULL;
     }