Go: fixing typo in log messages.

src/go/unit/nxt_cgo_lib.c

@@ -203,5 +203,5 @@ nxt_cgo_request_done(uintptr_t req, int res)
 void
 nxt_cgo_warn(uintptr_t msg, uint32_t msg_len)
 {
-    nxt_unit_warn(NULL, ".*s", (int) msg_len, (char *) msg);
+    nxt_unit_warn(NULL, "%.*s", (int) msg_len, (char *) msg);
 }

src/go/unit/port.go

@@ -163,7 +163,7 @@ func nxt_go_port_recv(pid C.int, id C.int, buf unsafe.Pointer, buf_size C.int,
 		GoBytes(oob, oob_size))
 
 	if err != nil {
-		nxt_go_warn("write result %d (%d), %s", n, oobn, err)
+		nxt_go_warn("read result %d (%d), %s", n, oobn, err)
 	}
 
 	return C.ssize_t(n)