Fix typo

pkg/auth/manager/machine/machine.go

@@ -82,7 +82,7 @@ func (m *manager) Authenticate(ctx context.Context, user, secret string) (*userp
 	}
 
 	// username could be either a normal username or a string <claim>:<value>
-	// in the first case the calim is the default one, so "username"
+	// in the first case the claim is "username"
 	claim, value, err := parseUser(user)
 	if err != nil {
 		return nil, nil, err