t5520: test for failure if index has unresolved entries

diff --git a/builtin/mailinfo.c b/builtin/mailinfo.c
index 2632fb037a6a285b17ca89911dc3da17cab231dd..6a14d2985d12394d343cb91290111d6a8c0a5d06 100644 (file)
--- a/builtin/mailinfo.c
+++ b/builtin/mailinfo.c
@@ -288,9 +288,10 @@ static inline int cmp_header(const struct strbuf *line, const char *hdr)
                        line->buf[len] == ':' && isspace(line->buf[len + 1]);
 }
 
-#define SAMPLE "From e6807f3efca28b30decfecb1732a56c7db1137ee Mon Sep 17 00:00:00 2001\n"
 static int is_format_patch_separator(const char *line, int len)
 {
+       static const char SAMPLE[] =
+               "From e6807f3efca28b30decfecb1732a56c7db1137ee Mon Sep 17 00:00:00 2001\n";
        const char *cp;
 
        if (len != strlen(SAMPLE))