/IN *SOA/ regular expression can give a false positive match. For example, the following line matches, which is unexpected for the test:
example. 60 IN DNSKEY 257 3 13 oCFm3P5uMtWuqXqbyUUlHHNgjCztzASAFhXUlnnudcYkYmNwOwYm6jah RewD1COujT/Lj2+JyKDV3sFRrINSOA==
It detects the "INSOA" sub-string in the base64-encoded data.
Change the regular expression to make it more precise.
Closes #3494 (closed)