hg: lambda/lambda/jdk: add missing @since directives.

[mike.duigou at oracle.com]

Changeset: 085f4a5cfbd4
Author:    mduigou
Date:      2013-03-27 18:31 -0700
URL:       http://hg.openjdk.java.net/lambda/lambda/jdk/rev/085f4a5cfbd4

add missing @since directives.

! src/share/classes/java/util/DoubleSummaryStatistics.java
! src/share/classes/java/util/IntSummaryStatistics.java
! src/share/classes/java/util/LongSummaryStatistics.java