builtin/commit: fix memory leak in `prepare_index()`

diff --git a/trailer.c b/trailer.c
index 11f0b9fb40bcedbfcd3111fa8076ce0d9e1eb20f..751b56c009a8c2f6c3531dab65565f9e06029778 100644 (file)
--- a/trailer.c
+++ b/trailer.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "config.h"
 #include "string-list.h"
 #include "run-command.h"
 #include "commit.h"