prepare-root: Use constant for ed25519 signature

Minor cleanup.

diff --git a/src/switchroot/ostree-prepare-root.c b/src/switchroot/ostree-prepare-root.c
index 7419a24c6de2e8eeabbcca58a3aa05be642de3e7..a0dd1be90dd3ba3f53103bc03c469ff9aecff193 100644 (file)
--- a/src/switchroot/ostree-prepare-root.c
+++ b/src/switchroot/ostree-prepare-root.c
@@ -352,8 +352,8 @@ main (int argc, char *argv[])
                                        &local_error))
             errx (EXIT_FAILURE, "Error loading signatures from repo: %s", local_error->message);
 
-          g_autoptr (GVariant) signatures
-              = g_variant_lookup_value (commitmeta, "ostree.sign.ed25519", G_VARIANT_TYPE ("aay"));
+          g_autoptr (GVariant) signatures = g_variant_lookup_value (
+              commitmeta, OSTREE_SIGN_METADATA_ED25519_KEY, G_VARIANT_TYPE ("aay"));
           if (signatures == NULL)
             errx (EXIT_FAILURE, "Signature validation requested, but no signatures in commit");