diff --git a/log/logs_test.go b/log/logs_test.go
index f45515e..1411077 100644
--- a/log/logs_test.go
+++ b/log/logs_test.go
@@ -19,6 +19,7 @@ import (
 	"testing"
 )
 
+// Logger.
 var logger = NewLogger(os.Stdout)
 
 func TestSetLevel(t *testing.T) {
diff --git a/util/panic.go b/util/panic.go
index 7e9a5b7..3c023d9 100644
--- a/util/panic.go
+++ b/util/panic.go
@@ -42,7 +42,7 @@ func Recover() {
 	}
 }
 
-// stack implements Stack, skipping 2 frames
+// stack implements Stack, skipping 2 frames.
 func stack() []byte {
 	buf := new(bytes.Buffer) // the returned data
 	// As we loop, we open files and read them. These variables record the currently