Fix comment.

This commit was SVN r26696.

ompi/mca/btl/tcp/btl_tcp.h

@@ -53,7 +53,7 @@ BEGIN_C_DECLS
 struct mca_btl_tcp_component_t {
     mca_btl_base_component_2_0_0_t super;   /**< base BTL component */ 
     uint32_t tcp_addr_count;                /**< total number of addresses */
-    uint32_t tcp_num_btls;                  /**< number of hcas available to the TCP component */
+    uint32_t tcp_num_btls;                  /**< number of interfaces available to the TCP component */
     uint32_t tcp_num_links;                 /**< number of logical links per physical device */
     struct mca_btl_tcp_module_t **tcp_btls; /**< array of available BTL modules */
     struct mca_btl_tcp_proc_t* tcp_local;   /**< local proc struct */