Prefer using StringBuilder to using StringBuffer

src/main/java/org/cdma/gui/databrowser/view/item/MatrixViewer.java

@@ -251,7 +251,7 @@ public class MatrixViewer extends AbstractItemViewer<MatrixItem>
 
     //
     // private static String createTabName(final IKey itemKey) {
-    // StringBuffer buf = new StringBuffer();
+    // StringBuilder buf = new StringBuilder();
     //
     // if (itemKey instanceof CDMAKey) {
     // String[] path = ((CDMAKey) itemKey).getPath();
@@ -269,7 +269,7 @@ public class MatrixViewer extends AbstractItemViewer<MatrixItem>
     // }
     //
     // private static String createTabToolTip(final IKey itemKey) {
-    // StringBuffer buf = new StringBuffer();
+    // StringBuilder buf = new StringBuilder();
     //
     // if (itemKey instanceof CDMAKey) {
     // for (String node : ((CDMAKey) itemKey).getPath()) {