fnotifystat: fix src/homepage, moved to github

Also touchup the build to match pattern used for other ColinIanKing utilities

pkgs/os-specific/linux/fnotifystat/default.nix

···
-{ stdenv, lib, fetchurl }:
+{ stdenv, lib, fetchFromGitHub }:
 
 stdenv.mkDerivation rec {
   pname = "fnotifystat";
   version = "0.02.07";
-  src = fetchurl {
-    url = "https://kernel.ubuntu.com/~cking/tarballs/fnotifystat/fnotifystat-${version}.tar.gz";
-    sha256 = "0ipfg2gymbgx7bqlx1sq5p2y89k5j18iqnb0wa27n5s3kh9sh8w0";
+  src = fetchFromGitHub {
+    owner = "ColinIanKing";
+    repo = pname;
+    rev = "V${version}";
+    sha256 = "sha256-5oYM1t+vmWywYRbgXI2RGQlOuNJluj2gwCMf3pTpDC0=";
   };
-  installFlags = [ "DESTDIR=$(out)" ];
-  postInstall = ''
-    mv $out/usr/* $out
-    rm -r $out/usr
-  '';
+
+  installFlags = [
+    "BINDIR=${placeholder "out"}/bin"
+    "MANDIR=${placeholder "out"}/share/man/man8"
+    "BASHDIR=${placeholder "out"}/share/bash-completion/completions"
+  ];
+
   meta = with lib; {
     description = "File activity monitoring tool";
-    homepage = "https://kernel.ubuntu.com/~cking/fnotifystat/";
+    homepage = "https://github.com/ColinIanKing/fnotifystat";
     license = licenses.gpl2;
     platforms = platforms.linux;
-    maintainers = with maintainers; [ womfoo ];
+    maintainers = with maintainers; [ womfoo dtzWill ];
   };
 }