gitAndTools.transcrypt: add hidden dependencies

pkgs/applications/version-management/git-and-tools/transcrypt/default.nix

···
-{ stdenv, fetchFromGitHub, git, makeWrapper, openssl }:
+{ stdenv, fetchFromGitHub, git, makeWrapper, openssl, coreutils, utillinux, gnugrep, gnused, gawk }:
 
 stdenv.mkDerivation rec {
   name = "transcrypt-${version}";
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     sha256 = "1dkr69plk16wllk5bzlkchrzw63pk239dgbjhrb3mb61i065jdam";
   };
 
-  buildInputs = [ git makeWrapper openssl ];
+  buildInputs = [ makeWrapper git openssl coreutils utillinux gnugrep gnused gawk ];
 
   installPhase = ''
     install -m 755 -D transcrypt $out/bin/transcrypt
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     install -m 644 -D contrib/zsh/_transcrypt $out/share/zsh/site-functions/_transcrypt
 
     wrapProgram $out/bin/transcrypt \
-      --prefix PATH : "${stdenv.lib.makeBinPath [ git openssl ]}"
+      --prefix PATH : "${stdenv.lib.makeBinPath [ git openssl coreutils utillinux gnugrep gnused gawk ]}"
   '';
 
   meta = with stdenv.lib; {