asciigraph: switch to buildGoModule

pkgs/tools/text/asciigraph/default.nix

@@ -1,11 +1,9 @@
-{ lib, buildGoPackage, fetchFromGitHub }:
+{ lib, buildGoModule, fetchFromGitHub }:
 
-buildGoPackage rec {
+buildGoModule rec {
   pname = "asciigraph";
   version = "0.5.3";
 
-  goPackagePath = "github.com/guptarohit/asciigraph";
-
   src = fetchFromGitHub {
     owner = "guptarohit";
     repo = pname;
@@ -13,10 +11,14 @@ buildGoPackage rec {
     sha256 = "sha256-GzFJT4LI1QZzghs9g2A+pqkTg68XC+m9F14rYpMxEXM=";
   };
 
+  vendorSha256 = "sha256-pQpattmS9VmO3ZIQUFn66az8GSmB4IvYhTTCFn6SUmo=";
+
+  ldflags = [ "-s" "-w" ];
+
   meta = with lib; {
     homepage = "https://github.com/guptarohit/asciigraph";
     description = "Lightweight ASCII line graph ╭┈╯ command line app";
     license = licenses.bsd3;
-    maintainers = [ maintainers.mmahut ];
+    maintainers = with maintainers; [ mmahut ];
   };
 }