true: Port to LibMain

Author: https://github.com/bgianfo
Commit: 7403342387
Pull-request: https://github.com/SerenityOS/serenity/pull/13172
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/awesomekling
Reviewed-by: https://github.com/ldm5180

Userland/Utilities/CMakeLists.txt

@@ -197,6 +197,7 @@ target_link_libraries(timezone LibMain)
 target_link_libraries(top LibMain)
 target_link_libraries(touch LibMain)
 target_link_libraries(tree LibMain)
+target_link_libraries(true LibMain)
 target_link_libraries(truncate LibMain)
 target_link_libraries(tt LibPthread)
 target_link_libraries(umount LibMain)

Userland/Utilities/true.cpp

@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <sys/cdefs.h>
+#include <LibMain/Main.h>
 
-int main(int, char**)
+ErrorOr<int> serenity_main(Main::Arguments)
 {
     return 0;
 }