Sligthly simplified buildImportMenu loop

Author: cmaglie

Diff for: app/src/processing/app/Base.java

@@ -1102,11 +1102,12 @@ public void actionPerformed(ActionEvent e) {
       List<ContributedLibrary> libs = getSortedLibraries();
       String lastLibType = null;
       for (ContributedLibrary lib : libs) {
-        if (lastLibType == null || !lastLibType.equals(lib.getTypes().get(0))) {
+        String libType = lib.getTypes().get(0);
+        if (!libType.equals(lastLibType)) {
           if (lastLibType != null) {
             importMenu.addSeparator();
           }
-          lastLibType = lib.getTypes().get(0);
+          lastLibType = libType;
           JMenuItem platformItem = new JMenuItem(I18n.format(tr("{0} libraries"), tr(lastLibType)));
           platformItem.setEnabled(false);
           importMenu.add(platformItem);