*: fix comment typos found with github.com/client9/misspell

cmd/example-app/templates.go

@@ -70,7 +70,7 @@ func renderTemplate(w http.ResponseWriter, tmpl *template.Template, data interfa
 
 	switch err := err.(type) {
 	case *template.Error:
-		// An ExecError guarentees that Execute has not written to the underlying reader.
+		// An ExecError guarantees that Execute has not written to the underlying reader.
 		log.Printf("Error rendering template %s: %s", tmpl.Name(), err)
 
 		// TODO(ericchiang): replace with better internal server error.

server/templates.go

@@ -223,7 +223,7 @@ func (t *templates) oob(w http.ResponseWriter, code string) {
 	renderTemplate(w, t.oobTmpl, data)
 }
 
-// small io.Writer utilitiy to determine if executing the template wrote to the underlying response writer.
+// small io.Writer utility to determine if executing the template wrote to the underlying response writer.
 type writeRecorder struct {
 	wrote bool
 	w     io.Writer

storage/conformance/conformance.go

@@ -62,7 +62,7 @@ func mustLoadJWK(b string) *jose.JSONWebKey {
 func mustBeErrNotFound(t *testing.T, kind string, err error) {
 	switch {
 	case err == nil:
-		t.Errorf("deleting non-existant %s should return an error", kind)
+		t.Errorf("deleting non-existent %s should return an error", kind)
 	case err != storage.ErrNotFound:
 		t.Errorf("deleting %s expected storage.ErrNotFound, got %v", kind, err)
 	}

storage/sql/crud.go

@@ -13,7 +13,7 @@ import (
 )
 
 // TODO(ericchiang): The update, insert, and select methods queries are all
-// very repetivite. Consider creating them programatically.
+// very repetitive. Consider creating them programmatically.
 
 // keysRowID is the ID of the only row we expect to populate the "keys" table.
 const keysRowID = "keys"