From f27f69ac5a5c234c7cb5c6696d0c1119d5a83b92 Mon Sep 17 00:00:00 2001
From: Martin Baulig <mabaul@microsoft.com>
Date: Wed, 11 Dec 2019 18:06:49 -0500
Subject: Remove C# 8 nullability annotation.

---
 src/System.IO.FileSystem/src/System/IO/FileSystem.Unix.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/System.IO.FileSystem/src/System/IO/FileSystem.Unix.cs b/src/System.IO.FileSystem/src/System/IO/FileSystem.Unix.cs
index 81ea613d6b..6a4b97ba67 100644
--- a/src/System.IO.FileSystem/src/System/IO/FileSystem.Unix.cs
+++ b/src/System.IO.FileSystem/src/System/IO/FileSystem.Unix.cs
@@ -67,7 +67,7 @@ namespace System.IO
                     // FileNotFound only if the containing directory exists.
 
                     bool isDirectory = (error.Error == Interop.Error.ENOENT) &&
-                        (overwrite || !DirectoryExists(Path.GetDirectoryName(PathInternal.TrimEndingDirectorySeparator(destFullPath))!));
+                        (overwrite || !DirectoryExists(Path.GetDirectoryName(PathInternal.TrimEndingDirectorySeparator(destFullPath))));
 
                     Interop.CheckIo(
                         error.Error,
-- 
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