Merge pull request #254815 from johannwagner/fix-leading-hyphens-for-testVersion

      version ? package.version,

    }: runCommand "${package.name}-test-version" { nativeBuildInputs = [ package ]; meta.timeout = 60; } ''

      if output=$(${command} 2>&1); then

        if grep -Fw "${version}" - <<< "$output"; then

        if grep -Fw -- "${version}" - <<< "$output"; then

          touch $out

        else

          echo "Version string '${version}' not found!" >&2