Fix comments

README.md

@@ -52,7 +52,7 @@ srv.Handle("POST /webhook", srv.TrackWork(myWebhookHandler))
 log.Fatal(srv.ListenAndServe(":8080"))
 ```
 
-Patterns that collide with built-in routes panic at registration —
+Patterns that collide with built-in routes panic at registration:
 pick non-overlapping paths. Custom handlers are not wrapped by the
 load-tracking middleware unless you opt in via `TrackWork`.
 
@@ -74,7 +74,7 @@ type CheckerInteractive interface {
   pipeline, and returns a consolidated HTML page.
 
 `ParseForm` is where the checker replaces what happyDomain would normally
-auto-fill (zone records, service payload, …) — typically by issuing its
+auto-fill (zone records, service payload, …), typically by issuing its
 own DNS queries from the human-supplied inputs.
 
 ## License

checker/interactive_test.go

@@ -226,7 +226,7 @@ func TestCheck_NoReporters(t *testing.T) {
 
 // bareInteractiveProvider implements only the required interfaces
 // (ObservationProvider, CheckerDefinitionProvider, CheckerInteractive)
-// — no reporters.
+//, no reporters.
 type bareInteractiveProvider struct {
 	key ObservationKey
 	def *CheckerDefinition

checker/registry_test.go

@@ -74,7 +74,7 @@ func TestRegisterExternalizableChecker_AppendsEndpointOnce(t *testing.T) {
 	}
 
 	// Second registration of the same definition pointer must NOT append a
-	// second "endpoint" AdminOpt — the duplicate check has to fire before
+	// second "endpoint" AdminOpt, the duplicate check has to fire before
 	// the append, otherwise we silently mutate the live definition.
 	RegisterExternalizableChecker(c)
 	if n := len(c.Options.AdminOpts); n != 1 {

checker/server.go

@@ -171,7 +171,7 @@ func (s *Server) ListenAndServe(addr string) error {
 
 // Close stops the background load-average sampler goroutine. It is safe to
 // call multiple times; subsequent calls are no-ops. Close does not shut down
-// any underlying http.Server — callers own that lifecycle.
+// any underlying http.Server, callers own that lifecycle.
 func (s *Server) Close() error {
 	s.closeOnce.Do(func() {
 		s.cancelSampler()

checker/server_test.go

@@ -430,7 +430,7 @@ func TestServer_Evaluate_RulePreservesCode(t *testing.T) {
 
 func TestServer_Report_HTML(t *testing.T) {
 	p := &testProvider{
-		key: "test",
+		key:        "test",
 		definition: &CheckerDefinition{ID: "test-checker", Rules: []CheckRule{}},
 		htmlFn: func(raw json.RawMessage) (string, error) {
 			return "<p>hello</p>", nil
@@ -454,7 +454,7 @@ func TestServer_Report_HTML(t *testing.T) {
 
 func TestServer_Report_Metrics(t *testing.T) {
 	p := &testProvider{
-		key: "test",
+		key:        "test",
 		definition: &CheckerDefinition{ID: "test-checker", Rules: []CheckRule{}},
 	}
 	srv := newTestServer(p)
@@ -478,7 +478,7 @@ func TestServer_Report_Metrics(t *testing.T) {
 func TestServer_Report_Related(t *testing.T) {
 	var gotRelated []RelatedObservation
 	p := &testProvider{
-		key: "test",
+		key:        "test",
 		definition: &CheckerDefinition{ID: "test-checker", Rules: []CheckRule{}},
 	}
 	// Replace htmlFn with one that peeks at a related key. We can't do that