lib/resolve nitpick: add const to a parameter

There seems no potential for modifying this one.
27 jobs for cflare-checkout in 113 minutes and 25 seconds (queued for 39 seconds)
Status Job ID Name Coverage
  Build
passed #197864
amd64 linux docker
build:clang:linux:amd64

00:00:56

passed #197863
amd64 linux docker
build:linux:amd64

00:00:53

passed #197865
amd64 linux docker allowed to fail
srpm

00:00:41

 
  Test
passed #197873
amd64 linux docker
deckard:linux:amd64

00:01:29

passed #197879
privileged
distro:epel-7

00:02:51

passed #197878
privileged
distro:fedora-29

00:02:41

passed #197872
docker
doc

00:00:53

passed #197870
dind
docker:build

00:02:24

passed #197871
amd64 linux docker
installcheck:linux:amd64

00:01:09

passed #197874
amd64 linux docker
installcheck:valgrind:linux:amd64

00:01:38

passed #197867
docker
lint:c

00:02:22

failed #197868
docker allowed to fail
lint:clang-scan-build

00:01:11

passed #197866
docker
lint:lua

00:00:41

passed #197875
docker
osx:build

00:00:37

passed #197877
amd64 linux docker
respdiff:iter:udp:linux:amd64

00:02:16

passed #197869
amd64 linux docker
test:linux:amd64

00:01:03

passed #197876
amd64 linux docker
test:linux:amd64:valgrind

00:01:01

 
  Respdiff
passed #197880
respdiff
respdiff:fwd-tls6-kresd.udp6

00:30:50

failed #197881
respdiff
respdiff:fwd-udp6-kresd.udp6

00:37:22

failed #197885
respdiff
respdiff:fwd-udp6-unbound.tcp6

01:48:56

passed #197886
respdiff
respdiff:fwd-udp6-unbound.tls6

01:37:25

failed #197884
respdiff
respdiff:fwd-udp6-unbound.udp6

01:24:55

failed #197883
respdiff
respdiff:iter.tls6

00:55:24

failed #197882
respdiff
respdiff:iter.udp6

01:05:24

passed #197887
respdiff
resperf:fwd-tls6.udp-asan

00:11:46

passed #197888
respdiff
resperf:fwd-udp6.udp-asan

00:13:47

passed #197889
respdiff
resperf:iter.udp-asan

00:09:46

 
Name Stage Failure
failed
respdiff:fwd-udp6-unbound.tcp6 Respdiff
Running after script...
$ cp -t . respdiff_commitdir/$RESPDIFF_TEST/j* ||:
$ cp -t . respdiff_commitdir/*$RESPDIFF_TEST*.png ||:
Uploading artifacts...
Runtime platform arch=amd64 os=linux pid=30782 revision=3afdaba6 version=11.5.0
./j*: found 36 matching files

./*.png: found 6 matching files

Uploading artifacts to coordinator... ok
id=197885 responseStatus=201 Created token=fi9R36xq
ERROR: Job failed: exit status 1
failed
respdiff:fwd-udp6-unbound.udp6 Respdiff
Running after script...
$ cp -t . respdiff_commitdir/$RESPDIFF_TEST/j* ||:
$ cp -t . respdiff_commitdir/*$RESPDIFF_TEST*.png ||:
Uploading artifacts...
Runtime platform arch=amd64 os=linux pid=30238 revision=3afdaba6 version=11.5.0
./j*: found 36 matching files

./*.png: found 6 matching files

Uploading artifacts to coordinator... ok
id=197884 responseStatus=201 Created token=U4GGrmhN
ERROR: Job failed: exit status 1
failed
respdiff:iter.udp6 Respdiff
Running after script...
$ cp -t . respdiff_commitdir/$RESPDIFF_TEST/j* ||:
$ cp -t . respdiff_commitdir/*$RESPDIFF_TEST*.png ||:
Uploading artifacts...
Runtime platform arch=amd64 os=linux pid=29793 revision=3afdaba6 version=11.5.0
./j*: found 36 matching files

./*.png: found 6 matching files

Uploading artifacts to coordinator... ok
id=197882 responseStatus=201 Created token=gmURH9t9
ERROR: Job failed: exit status 1
failed
respdiff:iter.tls6 Respdiff
Running after script...
$ cp -t . respdiff_commitdir/$RESPDIFF_TEST/j* ||:
$ cp -t . respdiff_commitdir/*$RESPDIFF_TEST*.png ||:
Uploading artifacts...
Runtime platform arch=amd64 os=linux pid=29513 revision=3afdaba6 version=11.5.0
./j*: found 36 matching files

./*.png: found 6 matching files

Uploading artifacts to coordinator... ok
id=197883 responseStatus=201 Created token=Qqoyuyzs
ERROR: Job failed: exit status 1
failed
respdiff:fwd-udp6-kresd.udp6 Respdiff
Running after script...
$ cp -t . respdiff_commitdir/$RESPDIFF_TEST/j* ||:
$ cp -t . respdiff_commitdir/*$RESPDIFF_TEST*.png ||:
Uploading artifacts...
Runtime platform arch=amd64 os=linux pid=29020 revision=3afdaba6 version=11.5.0
./j*: found 36 matching files

./*.png: found 6 matching files

Uploading artifacts to coordinator... ok
id=197881 responseStatus=201 Created token=VE65XpYi
ERROR: Job failed: exit status 1
failed
lint:clang-scan-build Test
  CCLD	modules/stats/stats.so
CCLD modules/bogus_log/bogus_log.so
CCLD modules/nsid/nsid.so
scan-build: 7 bugs found.
scan-build: Run 'scan-view /builds/knot/knot-resolver/scan-results/2018-11-26-110116-15-1' to examine bug reports.
Uploading artifacts...
scan-results: found 12 matching files
Uploading artifacts to coordinator... ok
id=197868 responseStatus=201 Created token=sCni_mrU
ERROR: Job failed: exit code 1