global: cleanup code style

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

tunnel/src/main/java/com/wireguard/android/backend/GoBackend.java

@@ -42,6 +42,7 @@ public final class GoBackend implements Backend {
     @Nullable private Config currentConfig;
     @Nullable private Tunnel currentTunnel;
     private int currentTunnelHandle = -1;
+
     public GoBackend(final Context context) {
         SharedLibraryLoader.loadSharedLibrary(context, "wg-go");
         this.context = context;