Output result

src/kyut.cpp

@@ -7,10 +7,10 @@
 
 int main(int argc, char *argv[]) {
     try {
-        if (argc != 3) {
+        if (argc != 4) {
             fmt::print(std::cerr,
                        "WebAssembly digital watermarker.\n"
-                       "usage: kyut <input file> <watermark>\n");
+                       "usage: kyut <input file> <watermark> <output file>\n");
 
             return 1;
         }
@@ -19,6 +19,8 @@ int main(int argc, char *argv[]) {
         wasm::ModuleReader{}.read(argv[1], module);
 
         kyut::pass::embedWatermarkOperandSwapping(module);
+
+        wasm::ModuleWriter{}.writeText(module, argv[3]);
     } catch (wasm::ParseException &e) {
         fmt::print(std::cerr, "parse error\n");
         e.dump(std::cerr);