oh-my-git: fix ingame editor missing perl

pkgs/games/oh-my-git/default.nix

@@ -19,6 +19,7 @@
 , libXrender
 , libglvnd
 , libpulseaudio
+, perl
 , zlib
 , udev # for libudev
 }:
@@ -54,6 +55,7 @@ stdenv.mkDerivation rec {
     libXrender
     libglvnd
     libpulseaudio
+    perl
     zlib
     udev
   ];
@@ -70,6 +72,13 @@ stdenv.mkDerivation rec {
     })
   ];
 
+  # patch shebangs so that e.g. the fake-editor script works:
+  # error: /usr/bin/env 'perl': No such file or directory
+  # error: There was a problem with the editor
+  postPatch = ''
+    patchShebangs scripts
+  '';
+
   buildPhase = ''
     runHook preBuild