[DEBUG] Use va_copy when reusing a va_list
When tracing (with the DEBUG compile-time option set to 1 or 2),
exverror calls TRACEV to print its arguments before passing them on.
So the arguments are consumed by the time exvwarning looks for them,
resulting in a segfault:
$ sh -c '"'
sh: Syntax error: Unterminated quoted string
$ sh -o debug -c '"'
sh: Segmentation fault (core dumped)
Make a copy with va_copy to avoid this.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2 files changed
