hg: jdk8/build/langtools: Added tag jdk8-b21 for changeset bcb21abf1c41

[david . katleman]

Changeset: 390a7828ae18
Author:    katleman
Date:      2012-01-13 10:05 -0800
URL:       http://hg.openjdk.java.net/jdk8/build/langtools/rev/390a7828ae18

Added tag jdk8-b21 for changeset bcb21abf1c41

! .hgtags