From 970ed610dfa19aa8fbcf83e4ea400edaf4a6c963 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20H=C3=B8rl=C3=BCck=20Berg?=
 <36937807+henrikhorluck@users.noreply.github.com>
Date: Mon, 3 Jul 2023 16:42:42 +0200
Subject: [PATCH] Avoid string copying to speed up asan

---
 fish-rust/src/common.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fish-rust/src/common.rs b/fish-rust/src/common.rs
index bda45217b..18cf52e71 100644
--- a/fish-rust/src/common.rs
+++ b/fish-rust/src/common.rs
@@ -338,7 +338,7 @@ fn escape_string_url(input: &wstr) -> WString {
             }
         }
         // All other chars need to have their UTF-8 representation encoded in hex.
-        out += &sprintf!("%%%02X"L, byte)[..];
+        sprintf!(=> &mut out, "%%%02X"L, byte);
     }
     out
 }
@@ -374,7 +374,7 @@ fn escape_string_var(input: &wstr) -> WString {
             continue;
         }
         // All other chars need to have their UTF-8 representation encoded in hex.
-        out += &sprintf!("_%02X"L, byte)[..];
+        sprintf!(=> &mut out, "_%02X"L, byte);
         prev_was_hex_encoded = true;
     }
     if prev_was_hex_encoded {