zsh-history: Backport upstream patch for config generation

pkgs/shells/zsh/zsh-history/0001-Fix-path-marshalling-when-saveing-config.patch

@@ -0,0 +1,25 @@
+From efc16fbe7e41784f218d9c6cb4239b209cd77214 Mon Sep 17 00:00:00 2001
+From: Christian Kampka <christian@kampka.net>
+Date: Sat, 12 Oct 2019 21:47:47 +0200
+Subject: [PATCH 1/2] Fix path marshalling when saveing config
+
+---
+ config/config.go | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/config/config.go b/config/config.go
+index 69a10c5..b5c61fe 100644
+--- a/config/config.go
++++ b/config/config.go
+@@ -26,7 +26,7 @@ func (p *Path) UnmarshalText(text []byte) error {
+ 	return nil
+ }
+ 
+-func (p *Path) MarshalText() (text []byte, err error) {
++func (p Path) MarshalText() (text []byte, err error) {
+ 	return []byte(p.path), nil
+ }
+ 
+-- 
+2.19.2
+

pkgs/shells/zsh/zsh-history/default.nix

@@ -11,6 +11,10 @@ buildGoModule rec {
     sha256 = "0r3p04my40dagsq1dssnk583qrlcps9f7ajp43z7mq73q3hrya5s";
   };
 
+  patches = [
+    ./0001-Fix-path-marshalling-when-saveing-config.patch
+  ];
+
   nativeBuildInputs = [ installShellFiles ];
 
   modSha256 = "0f10b86gyn7m7lw43c8y1m30mdg0i092a319v3cb2qj05jb9vn42";