* upstart-jobs/manual.nix:   - Replace "optional" function by one "mkIf".   - Pretty-print (indentation, extra lines, no trailing-whitespaces).
* upstart-jobs/manual.nix:
  - Replace "optional" function by one "mkIf".
  - Pretty-print (indentation, extra lines, no trailing-whitespaces).

git-svn-id: a8013ee9bf6b053da8ea218c5059f3906c3a3af2@15025 70bd8c7a-acb8-0310-9f0d-9cc1c95dcdbb

falsifian/personal_nixos,falsifian/personal_nixos,falsifian/personal_nixos,falsifian/personal_nixos,falsifian/personal_nixos