fix comment

global/overlay/etc/puppet/modules/dns/manifests/knotdns.pp

@@ -21,7 +21,7 @@ class dns::knotdns(
        command => "apt install -fy knot knot-host knot-dnsutils libknot14 python3-knot-rest=$knotrestversion && touch $control_file",
        unless  => "test -f $control_file",
     }
-    exec {"correct elasticsearch docker image mount rights":
+    exec {"Let user knot_rest use knot's socket":
        command => "usermod -a -G knot knot_rest",
        unless  => "test -f $control_file",
     }