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-rw-r--r--commands/internal.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/commands/internal.h b/commands/internal.h
index 21d1408c91..63c10af28e 100644
--- a/commands/internal.h
+++ b/commands/internal.h
@@ -1,2 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
int __do_digest(struct digest *d, unsigned char *sig,
int argc, char *argv[]);