MINOR: errors: allow empty va_args for diag variadic macro
Use the '##' operator to allow the usage of HA_DIAG_WARNING_COND macro
without extra arguments.
This must be backported up to 2.4.
(cherry picked from commit 01b3c3d4fb634ddf12ae103719b77f965987f037)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
diff --git a/include/haproxy/errors.h b/include/haproxy/errors.h
index 4ece6e5..a3614b7 100644
--- a/include/haproxy/errors.h
+++ b/include/haproxy/errors.h
@@ -88,7 +88,7 @@
#define HA_DIAG_WARNING_COND(cond, fmt, ...) \
do { \
if ((global.mode & MODE_DIAG) && (cond)) \
- _ha_diag_warning((fmt), __VA_ARGS__); \
+ _ha_diag_warning((fmt), ##__VA_ARGS__); \
} while (0)
/*