syslog: fix incorrect use of sizeof() in vsnprintf()

1 files changed, 1 insertions, 1 deletions

diff --git a/syslog.c b/syslog.c
index dbb7a5a..7a2839e 100644
--- a/syslog.c
+++ b/syslog.c
@@ -142,7 +142,7 @@ void log_printf(char *fmt, ...)
 		if (!buffer)
 			return;
 		va_start(ap, fmt);
-		n = vsnprintf(buffer, sizeof(buffer), fmt, ap);
+		n = vsnprintf(buffer, buffer_len, fmt, ap);
 		va_end(ap);
 		if (n < 1)
 			return;