Various problems processing long lines in EULA file

[sidney]

When the --eula option specifies a file that contains lines longer than 1000 characters, the code that breaks up the long lines so that they are not too long for the Mac OS resource handling is incorrect.

The most obvious error is that a new line is inserted after every "." character.

1.5.2. This is a short sentence. It starts a long paragraph of longer than 1000 characters

becomes

1.
5.
2.
This is a short sentence.
It starts a long paragraph of longer than 1000 characters

It will also exit with a failure if given a file containing a sequence more than 1000 characters that has no newlines and no "."

I have a pull request I'm preparing that both simplifies the existing code and fixes this.

[aonez]

Thanks a lot @sidney! Merged 😊

This one solves:

Adding an RTF EULA fails if the RTF contains long lines of text or long sentences.