Fix for data corruption when reading to a buffer that is smaller than the

internal buffer.

src/Renci.SshNet/Sftp/SftpFileStream.cs

@@ -362,7 +362,7 @@ namespace Renci.SshNet.Sftp
                         {
                             // copy remaining bytes to read buffer
                             _bufferLen = data.Length - bytesToWriteToCallerBuffer;
-                            Buffer.BlockCopy(data, count, _readBuffer, 0, _bufferLen);
+                            Buffer.BlockCopy(data, bytesToWriteToCallerBuffer, _readBuffer, 0, _bufferLen);
                         }
                     }
                     else