message: Fix .env.sample so it actually puts variables in the environment when sourced
diff: -DOCSRS_PREFIX=ignored/cratesfyi-prefix
  -DOCSRS_DATABASE_URL=postgresql://cratesfyi:password@localhost:15432
  -DOCSRS_LOG=docs_rs=debug,rustwide=info
  -AWS_ACCESS_KEY_ID=cratesfyi
  -AWS_SECRET_ACCESS_KEY=secret_key
  -S3_ENDPOINT=http://localhost:9000
  -DOCSRS_INCLUDE_DEFAULT_TARGETS=false
  -DOCSRS_DOCKER_IMAGE=ghcr.io/rust-lang/crates-build-env/linux-micro
  -SENTRY_ENVIRONMENT=dev
  +export DOCSRS_PREFIX=ignored/cratesfyi-prefix
  +export DOCSRS_DATABASE_URL=postgresql://cratesfyi:password@localhost:15432
  +export DOCSRS_LOG=docs_rs=debug,rustwide=info
  +export AWS_ACCESS_KEY_ID=cratesfyi
  +export AWS_SECRET_ACCESS_KEY=secret_key
  +export S3_ENDPOINT=http://localhost:9000
  +export DOCSRS_INCLUDE_DEFAULT_TARGETS=false
  +export DOCSRS_DOCKER_IMAGE=ghcr.io/rust-lang/crates-build-env/linux-micro
  +export SENTRY_ENVIRONMENT=dev
  