Change main return type to void and use ExitProcess

Author: RReverser

tools/pylauncher/pylauncher.c

@@ -157,7 +157,7 @@ static const wchar_t* get_script_path(const wchar_t* launcher_path) {
   return script_path_tools;
 }
 
-int main() {
+void main() {
   // Setting EMCC_LAUNCHER_DEBUG enabled debug output for the launcher itself.
   launcher_debug = GetEnvironmentVariableW(L"EMCC_LAUNCHER_DEBUG", NULL, 0);
 
@@ -229,5 +229,5 @@ int main() {
   CloseHandle(pi.hThread);
 
   dbg("pylauncher: done: %d\n", exit_code);
-  return exit_code;
+  ExitProcess(exit_code);
 }