Mail: fixed log action after SSL handshake.

src/mail/ngx_mail_handler.c

diff --git a/src/mail/ngx_mail_handler.c b/src/mail/ngx_mail_handler.c
index f72eeac..cf87a17 100644
--- a/src/mail/ngx_mail_handler.c
+++ b/src/mail/ngx_mail_handler.c
@@ -365,6 +365,8 @@
 
     s = c->data;
 
+    c->log->action = "sending client greeting line";
+
     cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
 
     s->protocol = cscf->protocol->type;