Silenced function deprecated warning

Author: cmaglie

app/src/processing/app/Base.java

@@ -141,7 +141,7 @@ static public void main(String args[]) throws Exception {
     if (OSUtils.isMacOS()) {
       System.setProperty("apple.laf.useScreenMenuBar",
         String.valueOf(!System.getProperty("os.version").startsWith("10.13")
-          || com.apple.eawt.Application.getApplication().isAboutMenuItemPresent()));
+          || isMacOsAboutMenuItemPresent()));
 
       ThinkDifferent.init();
     }
@@ -154,6 +154,11 @@ static public void main(String args[]) throws Exception {
     }
   }
 
+  @SuppressWarnings("deprecation")
+  public static boolean isMacOsAboutMenuItemPresent() {
+    return com.apple.eawt.Application.getApplication().isAboutMenuItemPresent();
+  }
+
   static public void initLogger() {
     Handler consoleHandler = new ConsoleLogger();
     consoleHandler.setLevel(Level.ALL);