Fixed the NGX_SOCKADDR_STRLEN macro definition.
The ngx_sock_ntop() function, when told to print both address and port,
prints IPv6 address in square brackets, followed by colon and port.
diff --git a/src/core/ngx_inet.h b/src/core/ngx_inet.h
index c5a3d76..e30dcb5 100644
--- a/src/core/ngx_inet.h
+++ b/src/core/ngx_inet.h
@@ -30,7 +30,7 @@
#if (NGX_HAVE_UNIX_DOMAIN)
#define NGX_SOCKADDR_STRLEN (sizeof("unix:") - 1 + NGX_UNIX_ADDRSTRLEN)
#else
-#define NGX_SOCKADDR_STRLEN (NGX_INET6_ADDRSTRLEN + sizeof(":65535") - 1)
+#define NGX_SOCKADDR_STRLEN (NGX_INET6_ADDRSTRLEN + sizeof("[]:65535") - 1)
#endif
#if (NGX_HAVE_UNIX_DOMAIN)
