tree-wide: use new multiArch buildFHSEnv argument

This is much more direct and sensible than setting a function null

pkgs/applications/audio/plexamp/default.nix

···
 in appimageTools.wrapType2 {
   inherit pname version src;
 
-  multiPkgs = null; # no 32bit needed
+  multiArch = false; # no 32bit needed
   extraPkgs = pkgs: appimageTools.defaultFhsEnvArgs.multiPkgs pkgs ++ [ pkgs.bash ];
 
   extraInstallCommands = ''

pkgs/applications/blockchains/mycrypto/default.nix

···
 in appimageTools.wrapType2 rec {
   inherit name src;
 
-  multiPkgs = null; # no p32bit needed
+  multiArch = false; # no p32bit needed
   extraPkgs = appimageTools.defaultFhsEnvArgs.multiPkgs;
 
   extraInstallCommands = ''

pkgs/applications/misc/chrysalis/default.nix

···
     };
   };
 
-  multiPkgs = null;
+  multiArch = false;
   extraPkgs = p: (appimageTools.defaultFhsEnvArgs.multiPkgs p) ++ [
     p.glib
   ];

pkgs/applications/misc/joplin-desktop/default.nix

···
       export LC_ALL=C.UTF-8
     '';
 
-    multiPkgs = null; # no 32bit needed
+    multiArch = false; # no 32bit needed
     extraPkgs = appimageTools.defaultFhsEnvArgs.multiPkgs;
     extraInstallCommands = ''
       mv $out/bin/{${name},${pname}}

pkgs/applications/misc/marktext/default.nix

···
     export LC_ALL=C.UTF-8
   '';
 
-  multiPkgs = null; # no 32bit needed
+  multiArch = false; # no 32bit needed
   extraPkgs = p: (appimageTools.defaultFhsEnvArgs.multiPkgs p) ++ [
     p.libsecret
     p.xorg.libxkbfile

pkgs/applications/misc/notable/default.nix

···
     export LC_ALL=C.UTF-8
   '';
 
-  multiPkgs = null; # no 32bit needed
+  multiArch = false; # no 32bit needed
   extraPkgs = p: (appimageTools.defaultFhsEnvArgs.multiPkgs p) ++ [ p.at-spi2-atk p.at-spi2-core ];
   extraInstallCommands = ''
     mv $out/bin/{${name},${pname}}

pkgs/applications/misc/zettlr/default.nix

···
 appimageTools.wrapType2 rec {
   inherit name src;
 
-  multiPkgs = null; # no 32bit needed
+  multiArch = false; # no 32bit needed
   extraPkgs = pkgs: (appimageTools.defaultFhsEnvArgs.multiPkgs pkgs) ++ [ texlive pandoc ];
   extraInstallCommands = ''
     mv $out/bin/{${name},${pname}}

pkgs/applications/networking/Sylk/default.nix

···
     export LC_ALL=C.UTF-8
   '';
 
-  multiPkgs = null; # no 32bit needed
+  multiArch = false; # no 32bit needed
   extraPkgs = appimageTools.defaultFhsEnvArgs.multiPkgs;
   extraInstallCommands = "mv $out/bin/{${name},${pname}}";
 

pkgs/applications/networking/browsers/polypane/default.nix

···
 in appimageTools.wrapType2 {
   inherit pname src version;
 
-  multiPkgs = null;
+  multiArch = false;
   extraPkgs = pkgs: appimageTools.defaultFhsEnvArgs.multiPkgs pkgs ++ [ pkgs.bash ];
 
   extraInstallCommands = ''

pkgs/applications/networking/cluster/octant/desktop.nix

···
       export LC_ALL=C.UTF-8
     '';
 
-    multiPkgs = null; # no 32bit needed
+    multiArch = false; # no 32bit needed
     extraPkgs = appimageTools.defaultFhsEnvArgs.multiPkgs;
     extraInstallCommands =
       let appimageContents = appimageTools.extractType2 { inherit name src; }; in

pkgs/applications/networking/station/default.nix

···
     export LC_ALL=C.UTF-8
   '';
 
-  multiPkgs = null;
+  multiArch = false;
   extraPkgs = appimageTools.defaultFhsEnvArgs.multiPkgs;
   extraInstallCommands = ''
     mv $out/bin/{${name},${pname}}

pkgs/applications/office/tusk/default.nix

···
     export LC_ALL=C.UTF-8
   '';
 
-  multiPkgs = null; # no 32bit needed
+  multiArch = false; # no 32bit needed
   extraPkgs = appimageTools.defaultFhsEnvArgs.multiPkgs;
   extraInstallCommands = ''
     mv $out/bin/{${pname}-${version},${pname}}

pkgs/development/embedded/arduino/arduino-core/chrootenv.nix

···
         pyserial
       ]))
     ]);
-  multiPkgs = null;
+  multiArch = false;
 
   extraInstallCommands = ''
     ${lib.optionalString withGui ''

pkgs/development/tools/database/beekeeper-studio/default.nix

···
 appimageTools.wrapType2 {
   inherit name src;
 
-  multiPkgs = null; # no 32bit needed
+  multiArch = false; # no 32bit needed
   extraPkgs = pkgs: appimageTools.defaultFhsEnvArgs.multiPkgs pkgs ++ [ pkgs.bash ];
 
   extraInstallCommands = ''

pkgs/development/web/bloomrpc/default.nix

···
     export LC_ALL=C.UTF-8
   '';
 
-  multiPkgs = null; # no 32bit needed
+  multiArch = false; # no 32bit needed
   extraPkgs = pkgs: appimageTools.defaultFhsEnvArgs.multiPkgs pkgs ++ [ pkgs.bash ];
 
   extraInstallCommands = ''

pkgs/tools/misc/flexoptix-app/default.nix

···
   inherit pname version;
   src = appimageContents;
 
-  multiPkgs = null; # no 32bit needed
+  multiArch = false; # no 32bit needed
   extraPkgs = { pkgs, ... }@args: [
     pkgs.hidapi
   ] ++ appimageTools.defaultFhsEnvArgs.multiPkgs args;