fix: test_upload_large_file should open file in binary file mode

Author: azrle

test/functional/backends/test_netssh.rb

@@ -180,15 +180,15 @@ def test_upload_large_file
         size      = 25
         fills     = SecureRandom.random_bytes(1024*1024)
         file_name = "/tmp/file-#{size}.txt"
-        File.open(file_name, 'w') do |f|
+        File.open(file_name, 'wb') do |f|
           (size).times {f.write(fills) }
         end
         file_contents = ""
         Netssh.new(a_host) do
           upload!(file_name, file_name)
           file_contents = download!(file_name)
         end.run
-        assert_equal File.open(file_name).read, file_contents
+        assert_equal File.open(file_name, 'rb').read, file_contents
       end
 
       def test_upload_via_pathname