Fix corrupted character

Author: fredericDelaporte

.editorconfig

@@ -2,6 +2,7 @@ root=true
 
 [*]
 insert_final_newline = true
+charset = utf-8
 
 [*.cs]
 indent_style = tab

src/NHibernate/Transaction/AdoNetWithSystemTransactionFactory.cs

@@ -467,7 +467,7 @@ protected virtual void CompleteTransaction(bool isCommitted)
 						timeOutGuard.Start();
 						while (isProcessing && timeOutGuard.ElapsedMilliseconds < _systemTransactionCompletionLockTimeout)
 						{
-							// Naïve yield.
+							// Naïve yield.
 							Thread.Sleep(10);
 							isProcessing = _session.IsProcessing();
 						}