To keep the dialog titles consistent, they're in the following format:

url/path (shortened) - dialog title - TortoiseSVN
and can be changed to
dialog title - url/path (shortened) - TortoiseSVN
in the settings dialog, advanced page (read the docs on the settings
values).

The last discussion about this can be found here:
http://old.nabble.com/Repo-browser-labelling-on-the-task-bar-td31607056.html
there were several discussions about this before...

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