snd: 18.3 -> 18.4

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/snd/versions.

These checks were done:

- built on NixOS
- /nix/store/mjj4w55zxs6frv2k1jwwj6prfvc5khq8-snd-18.4/bin/snd passed the binary check.
- 1 of 1 passed binary check by having a zero exit code.
- 0 of 1 passed binary check by having the new version present in output.
- found 18.4 with grep in /nix/store/mjj4w55zxs6frv2k1jwwj6prfvc5khq8-snd-18.4
- directory tree listing: https://gist.github.com/3273a4d6d644822345c927f1c5898be3
- du listing: https://gist.github.com/990100affe939370c541757ed1ee0839

pkgs/applications/audio/snd/default.nix

@@ -4,11 +4,11 @@
 }:
 
 stdenv.mkDerivation rec {
-  name = "snd-18.3";
+  name = "snd-18.4";
 
   src = fetchurl {
     url = "mirror://sourceforge/snd/${name}.tar.gz";
-    sha256 = "117sgvdv0a03ys1v27bs99mgzpfm2a7xg6s0q6m1f79jniia12ss";
+    sha256 = "1asc513d0cmbq0ldzpzmfbydvlj5hwpp480qnicgkn96wplp9c7s";
   };
 
   nativeBuildInputs = [ pkgconfig ];