kio_ftp: improve error handling when copying to FTP fails
Could not write to file /index.html.part ... and WARNING: finished() called after error()! Please fix the "kio_ftp" KIO slave
Could not write to file /index.html.part The server said: "550 Can't open that file: Disk quota exceeded." ... and no more warning.
Copying a huge file onto an ftp folder in dolphin.
The server is running Pure-FTPd.
Reviewers: bruns, apol, kossebau
Reviewed By: bruns
Subscribers: kde-frameworks-devel, pino
Differential Revision: https://phabricator.kde.org/D21290