liblib: Don't try to send a log prefix to log process if there is none.

diff --git a/src/lib/failures.c b/src/lib/failures.c
index d75341315391cfe3c52b5a6e2af2b20ffebd5638..45d45d090a3b3b12b551b33098f8a3d522d815ef 100644 (file)
--- a/src/lib/failures.c
+++ b/src/lib/failures.c
@@ -565,7 +565,7 @@ internal_handler(const struct failure_context *ctx,
                string_t *str;
                unsigned int prefix_len;
 
-               if (!log_prefix_sent) {
+               if (!log_prefix_sent && log_prefix != NULL) {
                        log_prefix_sent = TRUE;
                        i_failure_send_option("prefix", log_prefix);
                }