goawk: 1.18.0 -> 1.20.0

- Add dependency on gawk for running tests

pkgs/tools/text/goawk/default.nix

@@ -1,18 +1,20 @@
-{ buildGoModule, fetchFromGitHub, lib, stdenv }:
+{ buildGoModule, fetchFromGitHub, lib, stdenv, gawk }:
 
 buildGoModule rec {
   pname = "goawk";
-  version = "1.18.0";
+  version = "1.20.0";
 
   src = fetchFromGitHub {
     owner = "benhoyt";
     repo = "goawk";
     rev = "v${version}";
-    sha256 = "sha256-kRakQo18qOzrlvsAKtKTHEacUxDfoWyMmtiM7d5WCvQ=";
+    sha256 = "sha256-omUtMNB8VBTbihy+VksCduvOENhtPApPBwUIxjVL9fI=";
   };
 
   vendorSha256 = "sha256-pQpattmS9VmO3ZIQUFn66az8GSmB4IvYhTTCFn6SUmo=";
 
+  checkInputs = [ gawk ];
+
   postPatch = ''
     substituteInPlace goawk_test.go \
       --replace "TestCommandLine" "SkipCommandLine" \
@@ -24,6 +26,11 @@ buildGoModule rec {
       --replace "TestShellCommand" "SkipShellCommand"
   '';
 
+  checkFlags = [
+    "-awk"
+    "${gawk}/bin/gawk"
+  ];
+
   doCheck = (stdenv.system != "aarch64-darwin");
 
   meta = with lib; {