On win32 the line ending are \r\n, so we skip the \n in function test_dynamic_globalprop

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200915171234.236-22-luoyonggang@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>