Add a comment to indicate who's responsible for freeing the returned string

diff --git a/util.c b/util.c
index abd094c7cb7e9a980fbb2a529ccbe8ad7bca2ff9..54cd403981b40d6121bf52bd47c314afeea57e7d 100644 (file)
--- a/util.c
+++ b/util.c
@@ -292,6 +292,7 @@ const char *tmp_string(void)
        return ret;
 }
 
+/* Return the hash result as a hex string. Caller frees. */
 char *format_hash_as_string(const unsigned char *hash, unsigned size)
 {
        char *ret;