Fix some lint and vet issues

tesseract/genconf/main.go

@@ -14,6 +14,7 @@ import (
 	"gopkg.in/yaml.v3"
 )
 
+// Config represents the main YAML configuration structure for tesseract
 type Config struct {
 	Listen      []string `yaml:"listen"`
 	Checkpoints string   `yaml:"checkpoints"`
@@ -21,6 +22,7 @@ type Config struct {
 	Logs        []Log    `yaml:"logs"`
 }
 
+// Log represents a single Certificate Transparency log configuration
 type Log struct {
 	ShortName        string    `yaml:"shortname"`
 	Inception        string    `yaml:"inception"`