[openssl-gost] [gost-engine/engine] fba4c3: Fix coverity issue 300457

[Dmitry Belyavskiy <noreply@github.com>]

  Branch: refs/heads/master
  Home:   https://github.com/gost-engine/engine
  Commit: fba4c338569d27f72ba53d5cbaea0bd989c02748
      https://github.com/gost-engine/engine/commit/fba4c338569d27f72ba53d5cbaea0bd989c02748
  Author: Dmitry Belyavskiy <beldmit@gmail.com>
  Date:   2020-05-04 (Mon, 04 May 2020)

  Changed paths:
    M e_gost_err.c
    M e_gost_err.h
    M gost.txt
    M gost_grasshopper_cipher.c

  Log Message:
  -----------
  Fix coverity issue 300457


  Commit: d19a1a820d7be62647bbdd7448d851498bf18968
      https://github.com/gost-engine/engine/commit/d19a1a820d7be62647bbdd7448d851498bf18968
  Author: Dmitry Belyavskiy <beldmit@gmail.com>
  Date:   2020-05-04 (Mon, 04 May 2020)

  Changed paths:
    M gost_ec_keyx.c

  Log Message:
  -----------
  Fix coverity issue 300458


Compare: https://github.com/gost-engine/engine/compare/2ed83791d569...d19a1a820d7b