From 7f498ee2a21ecdc5934a706369d90762a547c568 Mon Sep 17 00:00:00 2001
From: "Tobin C. Harding" <me@tobin.cc>
Date: Fri, 22 Jul 2022 13:52:09 +1000
Subject: [PATCH] Add docs re Rust 1.51.1

---
 src/util/amount.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util/amount.rs b/src/util/amount.rs
index d23b9c23..2cd93687 100644
--- a/src/util/amount.rs
+++ b/src/util/amount.rs
@@ -336,7 +336,7 @@ fn dec_width(mut num: u64) -> usize {
     width
 }
 
-// NIH due to MSRV, impl copied from `core`
+// NIH due to MSRV, impl copied from `core::i8::unsigned_abs` (introduced in Rust 1.51.1).
 fn unsigned_abs(x: i8) -> u8 {
     x.wrapping_abs() as u8
 }