The check for remote hangups is too strict

[Reinmar]

Apparently, on some git versions or OS locales, this error is printed out a bit differently:

 #  @ckeditor/ckeditor5-upload                                           39/39 (100%)
Cloning into '/Users/pjasiun/workspace/ckeditor5/packages/ckeditor5-upload'...
remote: Enumerating objects: 5, done.
remote: Counting objects: 100% (5/5), done.
remote: Compressing objects: 100% (5/5), done.
packet_write_wait: Connection to 192.30.253.113 port 22: Broken pipe
fatal: the remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed

The current check expects fatal: The remote... and that does not match.

I think that this check is in general too complicated. /fatal: the remote end hung up unexpectedly/i should be enough. After all, nothing bad should happen if we have false positive anyway.