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-rw-r--r--builtin/log.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/builtin/log.c b/builtin/log.c
index 099f4f7be9..8eef94f335 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -674,9 +674,9 @@ static int auto_number = 1;
static char *default_attach = NULL;
-static struct string_list extra_hdr;
-static struct string_list extra_to;
-static struct string_list extra_cc;
+static struct string_list extra_hdr = STRING_LIST_INIT_NODUP;
+static struct string_list extra_to = STRING_LIST_INIT_NODUP;
+static struct string_list extra_cc = STRING_LIST_INIT_NODUP;
static void add_header(const char *value)
{