Fix Profilers for coreclr

Coreclr doesn't support the StreamWriter(string) constructor.
Use File.CreateText() instead, which is equivalent and supported on all platforms.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/csharp/Grpc.Core/Profiling/Profilers.cs b/src/csharp/Grpc.Core/Profiling/Profilers.cs
index 471ee20875..aa0d96c0e0 100644
--- a/src/csharp/Grpc.Core/Profiling/Profilers.cs
+++ b/src/csharp/Grpc.Core/Profiling/Profilers.cs
@@ -111,7 +111,7 @@ namespace Grpc.Core.Profiling
 
         public void Dump(string filepath)
         {
-            using (var stream = new StreamWriter(filepath))
+            using (var stream = File.CreateText(filepath))
             {
                 Dump(stream);
             }