if (commit && !parse_commit(commit)) {
                        pretty_print_commit(CMIT_FMT_ONELINE, commit, ~0,
                                            &subject, &subject_len, 0,
-                                           NULL, NULL, 0);
+                                           NULL, NULL, 0, 0);
                        sub = subject;
                }
                printf("%c %s%-*s%s %s %s\n", c, branch_get_color(color),
 
                        char *buf = NULL;
                        unsigned long buflen = 0;
                        pretty_print_commit(CMIT_FMT_ONELINE, commit, ~0,
-                                           &buf, &buflen, 0, NULL, NULL, 0);
+                                           &buf, &buflen, 0, NULL, NULL, 0, 0);
                        printf("%c %s %s\n", sign,
                               sha1_to_hex(commit->object.sha1), buf);
                        free(buf);
 
                unsigned long buflen = 0;
                pretty_print_commit(revs.commit_format, commit, ~0,
                                    &buf, &buflen,
-                                   revs.abbrev, NULL, NULL, revs.date_mode);
+                                   revs.abbrev, NULL, NULL, revs.date_mode, 0);
                printf("%s%c", buf, hdr_termination);
                free(buf);
        }
 
        if (commit->object.parsed) {
                pretty_print_commit(CMIT_FMT_ONELINE, commit, ~0,
                                    &pretty, &pretty_len,
-                                   0, NULL, NULL, 0);
+                                   0, NULL, NULL, 0, 0);
                pretty_str = pretty;
        }
        if (!prefixcmp(pretty_str, "[PATCH] "))
 
 }
 
 /* High bit set, or ISO-2022-INT */
-static int non_ascii(int ch)
+int non_ascii(int ch)
 {
        ch = (ch & 0xff);
        return ((ch & 0x80) || (ch == 0x1b));
                                  char **buf_p, unsigned long *space_p,
                                  int abbrev, const char *subject,
                                  const char *after_subject,
-                                 enum date_mode dmode)
+                                 enum date_mode dmode,
+                                 int plain_non_ascii)
 {
        unsigned long offset = 0;
        unsigned long beginning_of_body;
        int indent = 4;
        const char *msg = commit->buffer;
-       int plain_non_ascii = 0;
        char *reencoded;
        const char *encoding;
        char *buf;
 
        CMIT_FMT_UNSPECIFIED,
 };
 
+extern int non_ascii(int);
 extern enum cmit_fmt get_commit_format(const char *arg);
-extern unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *, unsigned long len, char **buf_p, unsigned long *space_p, int abbrev, const char *subject, const char *after_subject, enum date_mode dmode);
+extern unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *, unsigned long len, char **buf_p, unsigned long *space_p, int abbrev, const char *subject, const char *after_subject, enum date_mode dmode, int non_ascii_present);
 
 /** Removes the first commit from a list sorted by date, and adds all
  * of its parents.
 
        return result;
 }
 
+static int has_non_ascii(const char *s)
+{
+       int ch;
+       if (!s)
+               return 0;
+       while ((ch = *s++) != '\0') {
+               if (non_ascii(ch))
+                       return 1;
+       }
+       return 0;
+}
+
 void show_log(struct rev_info *opt, const char *sep)
 {
        char *msgbuf = NULL;
         */
        len = pretty_print_commit(opt->commit_format, commit, ~0u,
                                  &msgbuf, &msgbuf_len, abbrev, subject,
-                                 extra_headers, opt->date_mode);
+                                 extra_headers, opt->date_mode,
+                                 has_non_ascii(opt->add_signoff));
 
        if (opt->add_signoff)
                len = append_signoff(&msgbuf, &msgbuf_len, len,