Fix nix-shell invocation

Anderssorby · Anton-Latukha · commit d3d4356dd258 · 2021-11-25T20:13:11.000+02:00
diff --git a/default.nix b/default.nix
@@ -109,6 +109,7 @@
       else abort "Requires Nix >= 2.0"
 
 , mkDerivation   ? null
+, inNixShell ? false
 }:
 
 let
