hostmux: 1.4.0 -> 1.4.1

update version and adjust replacing the tmux variable, due to changes in the script

pkgs/tools/misc/hostmux/default.nix

@@ -9,13 +9,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "hostmux";
-  version = "1.4.0";
+  version = "1.4.1";
 
   src = fetchFromGitHub {
     owner = "hukl";
     repo = "hostmux";
     rev = finalAttrs.version;
-    hash = "sha256-odN7QFsU3MsWW8VabVjZH+8+AUFOUio8eF9ORv9iPEA=";
+    hash = "sha256-Rh8eyKoUydixj+X7muWleZW9u8djCQAyexIfRWIOr0o=";
   };
 
   nativeBuildInputs = [
@@ -29,9 +29,8 @@ stdenv.mkDerivation (finalAttrs: {
 
   postPatch = ''
     substituteInPlace hostmux \
-      --replace "SSH_CMD=ssh" "SSH_CMD=${openssh}/bin/ssh" \
-      --replace "tmux -2" "${tmux}/bin/tmux -2" \
-      --replace "tmux s" "${tmux}/bin/tmux s"
+      --replace "SSH_CMD=ssh" "SSH_CMD=${lib.getExe openssh}" \
+      --replace "TMUX_CMD=tmux" "TMUX_CMD=${lib.getExe tmux}"
   '';
 
   installPhase = ''