Use early exit for --help and --version options.

src/xmrig.cpp

@@ -23,13 +23,20 @@
  */
 
 #include "App.h"
+#include "base/kernel/Entry.h"
 #include "base/kernel/Process.h"
 
 
 int main(int argc, char **argv) {
-    xmrig::Process process(argc, argv);
+    using namespace xmrig;
 
-    xmrig::App app(&process);
+    Process process(argc, argv);
+    const Entry::Id entry = Entry::get(process);
+    if (entry) {
+        return Entry::exec(process, entry);
+    }
+
+    App app(&process);
 
     return app.exec();
 }