Typo : fast-server-permiL -> fast-server-permiT

[Sean Darcy via Unbound-users]

Just setting up 1.8.2 In unbound.conf:

# select from the fastest servers this many times out of 1000. 0 means
# the fast server select is disabled. prefetches are not sped up
fast-server-permil: 1

Should this be fast-server-permit ?

sean