From 309301847479403298438d70ce5c3f332da896d4 Mon Sep 17 00:00:00 2001
From: Nicholas Nethercote <nnethercote@mozilla.com>
Date: Fri, 3 Apr 2020 14:02:44 +1100
Subject: [PATCH] Tweak `parse_opt_uint`.

Don't set `slot` on failure, like all the other `parse_*` functions.
---
 src/librustc_session/options.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/librustc_session/options.rs b/src/librustc_session/options.rs
index dea7ffd6bbb..2de3bea7086 100644
--- a/src/librustc_session/options.rs
+++ b/src/librustc_session/options.rs
@@ -421,7 +421,7 @@ fn parse_uint(slot: &mut usize, v: Option<&str>) -> bool {
         fn parse_opt_uint(slot: &mut Option<usize>, v: Option<&str>) -> bool {
             match v {
                 Some(s) => { *slot = s.parse().ok(); slot.is_some() }
-                None => { *slot = None; false }
+                None => false
             }
         }