switch a reference from 'argo' to 'margo'

examples/my-rpc.c

@@ -83,4 +83,4 @@ static void my_rpc_ult(void *_arg)
 
     return;
 }
-DEFINE_ARGO_RPC_HANDLER(my_rpc_ult)
+DEFINE_MARGO_RPC_HANDLER(my_rpc_ult)

examples/my-rpc.h

@@ -15,6 +15,6 @@ MERCURY_GEN_PROC(my_rpc_out_t, ((int32_t)(ret)))
 MERCURY_GEN_PROC(my_rpc_in_t,
     ((int32_t)(input_val))\
     ((hg_bulk_t)(bulk_handle)))
-DECLARE_ARGO_RPC_HANDLER(my_rpc_ult)
+DECLARE_MARGO_RPC_HANDLER(my_rpc_ult)
 
 #endif /* __MY_RPC */

include/margo.h

@@ -108,7 +108,7 @@ margo_instance_id margo_hg_class_to_instance(hg_class_t *cl);
  * macro that defines a function to glue an RPC handler to a fiber
  * @param [in] __name name of handler function
  */
-#define DEFINE_ARGO_RPC_HANDLER(__name) \
+#define DEFINE_MARGO_RPC_HANDLER(__name) \
 hg_return_t __name##_handler(hg_handle_t handle) { \
     int __ret; \
     ABT_pool* __pool; \
@@ -132,7 +132,7 @@ hg_return_t __name##_handler(hg_handle_t handle) { \
  * handler to a fiber
  * @param [in] __name name of handler function
  */
-#define DECLARE_ARGO_RPC_HANDLER(__name) hg_return_t __name##_handler(hg_handle_t handle);
+#define DECLARE_MARGO_RPC_HANDLER(__name) hg_return_t __name##_handler(hg_handle_t handle);
 
 #ifdef __cplusplus
 }