8255690: &nbsp in StringBuilder.subSequence

Reviewed-by: lancea

src/java.base/share/classes/java/lang/AbstractStringBuilder.java

@@ -1028,12 +1028,12 @@ abstract class AbstractStringBuilder implements Appendable, CharSequence {
      * <p> An invocation of this method of the form
      *
      * <pre>{@code
-     * sb.subSequence(begin,&nbsp;end)}</pre>
+     * sb.subSequence(begin, end)}</pre>
      *
      * behaves in exactly the same way as the invocation
      *
      * <pre>{@code
-     * sb.substring(begin,&nbsp;end)}</pre>
+     * sb.substring(begin, end)}</pre>
      *
      * This method is provided so that this class can
      * implement the {@link CharSequence} interface.