[Hamlib-developer] [Hamlib/Hamlib] e70465: Fix grep error on mingw build

[Michael B. <no...@gi...>]

  Branch: refs/heads/master
  Home:   https://github.com/Hamlib/Hamlib
  Commit: e70465a9c04c16c34a4ddc0e2b811ec12f9ece4b
      https://github.com/Hamlib/Hamlib/commit/e70465a9c04c16c34a4ddc0e2b811ec12f9ece4b
  Author: Mike Black W9MDB <mdb...@ya...>
  Date:   2022-12-24 (Sat, 24 Dec 2022)

  Changed paths:
    M src/Makefile.am

  Log Message:
  -----------
  Fix grep error on mingw build