[v9_11] Initialize checknames field in dns_view_create()
The 'checknames' field wasn't initialized in dns_view_create(), but it should otherwise AddressSanitizer identifies the following runtime error in query_test.c.
runtime error: load of value 190, which is not a valid value for type '_Bool'
(cherry picked from commit 0c6fa164)
Closes #2446 (closed)