I use SVN tortoise (English version). It is possible to attach dictionary in other language?
I would like to have checked spell when I write description for commits (in polish).
You can find the answer in the TortoiseSVN Manual:
TortoiseSVN includes a spell checker which allows you to check your commit log messages. This is especially useful if the project language is not your native language. The spell checker uses the same dictionary files as OpenOffice and Mozilla.
The installer automatically adds the US and UK English dictionaries. If you want other languages, the easiest option is simply to install one of TortoiseSVN's language packs. This will install the appropriate dictionary files as well as the TortoiseSVN local user interface. After the installation finishes, the dictionary will be available too.
来源：https://stackoverflow.com/questions/15223552/spell-check-in-tortoise-svn