fix against corrupted output in parallel logging
In 825607672215b7a12ea6e201a89cd5209f6d657f it was attempted to fix
a bug previously introduced by logging related changes. The problem
is that a va_list can be corrupted after it has been used once, so
we need to va_copy before each successive use.
And if we copy it, we also need to use the copy, and not the original ;)
diff --git a/src/logging.c b/src/logging.c
index 730fc37..948b2a6 100644
--- a/src/logging.c
+++ b/src/logging.c
@@ -261,7 +261,7 @@
* in undefined state. Since _output uses vsnprintf and it may
* be called several times, we have to pass a copy of ap. */
va_copy(bp, ap);
- _output(tar, subsys, level, file, line, cont, format, ap);
+ _output(tar, subsys, level, file, line, cont, format, bp);
va_end(bp);
}
}