tests: Fix heap overflow in coredump-unwind test
We've tried to run slightly modified test-coredump-unwind.c built with
tcmalloc, and it promptly crashed.  Attached patch fixes the heap buffer
overflow bug which caused it.
@@ -137,7 +137,7 @@ static void verror_msg_helper(const char *s,
if (flags & LOGMODE_STDIO)
{
fflush(stdout);
- used += write(STDERR_FILENO, msg, used + msgeol_len);
+ write(STDERR_FILENO, msg, used + msgeol_len);
}
msg[used] = '\0'; /* remove msg_eol (usually "\n") */
if (flags & LOGMODE_SYSLOG)
