From 7af6da3eee33df104e66a942c42303c7dc07df9f Mon Sep 17 00:00:00 2001
From: Hendrik Ranocha <ranocha@users.noreply.github.com>
Date: Thu, 25 Aug 2022 17:58:16 +0200
Subject: [PATCH] fix invalidations in logging

---
 base/logging.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/base/logging.jl b/base/logging.jl
index d2b6fa637c1bc..f60a9a1a80eab 100644
--- a/base/logging.jl
+++ b/base/logging.jl
@@ -672,7 +672,7 @@ function handle_message(logger::SimpleLogger, level::LogLevel, message, _module,
     end
     buf = IOBuffer()
     stream = logger.stream
-    if !isopen(stream)
+    if !(isopen(stream)::Bool)
         stream = stderr
     end
     iob = IOContext(buf, stream)