Correctly mark cover letters' encodings if they are not pure ASCII

If your name is, say, Üwë, you want your cover letters to appear
correctly.  Convince format-patch to mark it as 8-bit.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin-log.c b/builtin-log.c
index 0c2fa0ae2dc3f23cd52d2e8d765805b07262a7d6..1929e0a16c2a8fb458132017823990474b0db4d6 100644 (file)
--- a/builtin-log.c
+++ b/builtin-log.c
@@ -658,6 +658,10 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout,
        log_write_email_headers(rev, head, &subject_start, &extra_headers,
                                &need_8bit_cte);
 
+       for (i = 0; !need_8bit_cte && i < nr; i++)
+               if (has_non_ascii(list[i]->buffer))
+                       need_8bit_cte = 1;
+
        msg = body;
        pp_user_info(NULL, CMIT_FMT_EMAIL, &sb, committer, DATE_RFC2822,
                     encoding);