SwingDialog: clean up dialog disposal comment

Author: ctrueden

src/main/java/org/scijava/ui/swing/SwingDialog.java

@@ -267,9 +267,9 @@ public int show() {
 		}
 		dialog.setVisible(true);
 
-		// NB: surprisingly explicit dispose() required for modal dialogs to not
-		// hang up program exit. and even more surprising that it's not needed for
-		// modeless cases (like B&C). But testing bears this out.
+		// NB: Surprisingly, an explicit dispose() is required for modal dialogs
+		// to not hang up program exit. Even more surprisingly, it's not needed
+		// for modeless cases (like B&C).
 
 		// clean up the dialog afterwards
 		if (modal) dialog.dispose();