nginx__1.11.5_dynamic_tls_records broken on nginx 1.15.4

Error message:
```
patching file src/event/ngx_event_openssl.c
Hunk #1 succeeded at 1267 (offset 136 lines).
Hunk #2 succeeded at 2116 (offset 446 lines).
Hunk #3 succeeded at 2258 (offset 452 lines).
patching file src/event/ngx_event_openssl.h
Hunk #1 succeeded at 64 with fuzz 1 (offset 10 lines).
Hunk #2 FAILED at 89.
Hunk #3 succeeded at 116 (offset 18 lines).
1 out of 3 hunks FAILED -- saving rejects to file src/event/ngx_event_openssl.h.rej
patching file src/http/modules/ngx_http_ssl_module.c
Hunk #1 succeeded at 246 with fuzz 1 (offset 13 lines).
Hunk #2 succeeded at 611 (offset 43 lines).
Hunk #3 succeeded at 683 (offset 45 lines).
Hunk #4 succeeded at 881 with fuzz 1 (offset 49 lines).
patching file src/http/modules/ngx_http_ssl_module.h
Hunk #1 succeeded at 58 (offset 1 line).
```