Fix typos (#6235)

* Fix typos and add todo to fix spelling of dnsutil.MaximumDefaulTTL

Signed-off-by: Zhizhen He <hezhizhen.yi@gmail.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/plugin/pkg/up/up.go b/plugin/pkg/up/up.go
index 6f18ffb70..649107f59 100644
--- a/plugin/pkg/up/up.go
+++ b/plugin/pkg/up/up.go
@@ -10,9 +10,9 @@ import (
 // Probe is used to run a single Func until it returns true (indicating a target is healthy). If an Func
 // is already in progress no new one will be added, i.e. there is always a maximum of 1 checks in flight.
 //
-// There is a tradeoff to be made in figuring out quickly that an upstream is healthy and not doing to much work
-// (sending queries) to find that out. Having some kind of exp. backoff here won't help much, because you don't won't
-// to backoff too much. You then also need random queries to be perfomed every so often to quickly detect a working
+// There is a tradeoff to be made in figuring out quickly that an upstream is healthy and not doing much work
+// (sending queries) to find that out. Having some kind of exp. backoff here won't help much, because you don't want
+// to backoff too much. You then also need random queries to be performed every so often to quickly detect a working
 // upstream. In the end we just send a query every 0.5 second to check the upstream. This hopefully strikes a balance
 // between getting information about the upstream state quickly and not doing too much work. Note that 0.5s is still an
 // eternity in DNS, so we may actually want to shorten it.