hg: jdk8/build: Added tag jdk8-b21 for changeset cc771d92284f

[david . katleman]

Changeset: 7ad075c80995
Author:    katleman
Date:      2012-01-13 10:05 -0800
URL:       http://hg.openjdk.java.net/jdk8/build/rev/7ad075c80995

Added tag jdk8-b21 for changeset cc771d92284f

! .hgtags