pkgs/misc: pkgconfig -> pkg-config

pkgs/misc/sailsd/default.nix

@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, pkgconfig, jansson }:
+{ lib, stdenv, fetchFromGitHub, pkg-config, jansson }:
 
 let
   libsailing = fetchFromGitHub {
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
     sha256 = "1s4nlffp683binbdxwwzbsci61kbjylbcr1jf44sv1h1r5d5js05";
   };
 
-  nativeBuildInputs = [ pkgconfig ];
+  nativeBuildInputs = [ pkg-config ];
   buildInputs = [ jansson libsailing ];
 
   INSTALL_PATH = "$(out)";