sqlite: pass --enable-readline when interactive mode is enabled

[edef1c]

Fix #14378

• Tested using sandboxing
  (nix.useSandbox on NixOS,
  or option build-use-sandbox in nix.conf
  on non-NixOS)
• Built on platform(s)
  • NixOS
  • OS X
  • Linux
• Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Fits CONTRIBUTING.md.

[mention-bot]

By analyzing the blame information on this pull request, we identified @wkennington, @edolstra and @peti to be potential reviewers

[edolstra]

This is strange because sqlite-interactive works fine on release-16.03 without --enable-readline (see e.g. http://hydra.nixos.org/build/35647716/log/raw). I'm guessing this is some closure-size fallout.

[edef1c]

@edolstra closure-size fallout was my initial guess, but I'm not sure what precisely is going on here. Adding --enable-readline definitely did the trick, though.