size_t size = 0;
if (strbuf_read(&buf, 0, 0) < 0)
- return error("error while reading from stdin %s",
- strerror(errno));
+ return error_errno("error while reading from stdin");
s->should_munmap = 0;
s->data = strbuf_detach(&buf, &size);
DIFF_OPT_SET(&revs->diffopt, NO_INDEX);
+ DIFF_OPT_SET(&revs->diffopt, RELATIVE_NAME);
+ revs->diffopt.prefix = prefix;
+
revs->max_count = -2;
diff_setup_done(&revs->diffopt);