Update upload_file_to_vm.py
Update upload_file_to_vm.py

Referring to : https://github.com/vmware/pyvmomi/blob/master/docs/vim/vm/guest/FileManager.rst 
InitiateFileTransferToGuest(vm, auth, guestFilePath, fileAttributes, fileSize, overwrite):
When url pattern returns like, https://*:443/guestFile?
Script would fail with URL has an invalid label.
Having Hostname in place of * in that case, would help.
jm66/pyvmomi-community-samples,pathcl/pyvmomi-community-samples,vmware/pyvmomi-community-samples