wrapper.c: add and use fopen_or_warn()

diff --git a/builtin/merge-index.c b/builtin/merge-index.c
index 2d1b6db6bd7a33f838a50deceb108ee1ad468db1..c99443b095bd8abbe02d4ea87a452d916681c53f 100644 (file)
--- a/builtin/merge-index.c
+++ b/builtin/merge-index.c
@@ -9,7 +9,7 @@ static int merge_entry(int pos, const char *path)
 {
        int found;
        const char *arguments[] = { pgm, "", "", "", path, "", "", "", NULL };
-       char hexbuf[4][GIT_SHA1_HEXSZ + 1];
+       char hexbuf[4][GIT_MAX_HEXSZ + 1];
        char ownbuf[4][60];
 
        if (pos >= active_nr)