From 150217c1ac10fbef93e03694f6955029249c9aa4 Mon Sep 17 00:00:00 2001
From: Silvan Mosberger <silvan.mosberger@tweag.io>
Date: Mon, 14 Aug 2023 23:29:18 +0200
Subject: [PATCH] lib.removePrefix: Optimise

---
 lib/strings.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/strings.nix b/lib/strings.nix
index 1eb6cf9c1afb..df891c899887 100644
--- a/lib/strings.nix
+++ b/lib/strings.nix
@@ -629,10 +629,10 @@ rec {
             This behavior is deprecated and will throw an error in the future.''
     (let
       preLen = stringLength prefix;
-      sLen = stringLength str;
     in
       if substring 0 preLen str == prefix then
-        substring preLen (sLen - preLen) str
+        # -1 will take the string until the end
+        substring preLen (-1) str
       else
         str);