diff --git a/src/core/ngx_log.c b/src/core/ngx_log.c
index 12c59f5..5e3df22 100644
--- a/src/core/ngx_log.c
+++ b/src/core/ngx_log.c
@@ -1,15 +1,4 @@
 
-/*
-   TODO: log pid and tid
-*/
-
-/*
-   "[time as ctime()] [alert] 412#3 (32)Broken pipe: anything"
-
-   "[time as ctime()] [alert] (32)Broken pipe: anything"
-   "[time as ctime()] [alert] anything"
-*/
-
 #include <ngx_config.h>
 #include <ngx_core.h>
 
@@ -87,7 +76,7 @@
 
     /* pid#tid */
     len += ngx_snprintf(errstr + len, sizeof(errstr) - len - 1,
-                        PID_T_FMT "#%d: ", ngx_getpid(), 0);
+                        PID_T_FMT "#%d: ", ngx_getpid(), /* STUB */ 0);
 
     if (log->data) {
         len += ngx_snprintf(errstr + len, sizeof(errstr) - len - 1,