labels: improve comment on Builder.Set

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2 years ago · ea7345a09c
parent a19b369f9e
commit ea7345a09c
1 changed files with 1 additions and 1 deletions
--- a/model/labels/labels.go
+++ b/model/labels/labels.go
@ -468,7 +468,7 @@ Outer:
 	return b
 }
-// Set the name/value pair as a label.
+// Set the name/value pair as a label. A value of "" means delete that label.
 func (b *Builder) Set(n, v string) *Builder {
 	if v == "" {
 		// Empty labels are the same as missing labels.