[AWARE] Fix close guard method name

Close guard prints out a message when it is triggered. The message
should be the method which should have been called. The method has
been renamed from 'destroy' to 'close' - but the log message wasn't
updated.

Bug: 37514387
Test: N/A (string change)
Change-Id: I8ee0b9539692095c771829fffe9fa4bf60aaa504