Actually truncate result list in QueryChanges

Since 536c754edf40917423d9ef940846a6fec4386fc3 (Run dashboard queries
in parallel, 2013-09-06) when we truncate the local variable "changes"
we forget to assign it in the list of returned results.

Change-Id: Ic307cb6e2145435759afc65d5d5394d7ab92a831
Signed-off-by: Jonathan Nieder <jrn@google.com>
1 file changed