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Add a "See Also" section to link to the CLOSE command. This comes from experience: I was on the documentation for OPENWRITE and wanted to know how to close the file. I assumed it was CLOSEWRITE, so having a cross-reference would have saved me a bit of confusion.

Fix warnings found by checkmanual.pl.

Implement request #1736883; Updated ` (backtick) to latest from UCBLogo.

Add regression tests for `.

Bump the expected version to 6.14.0+.

Throw an error if the input isn't really a list. The error message is given in English, so this introduces an i18n bug.

Remove some undocumented behavior of `. It no longer allows the caller to pass in a second argument.

Implement request #1736883; Updated ` (backtick) to latest from UCBLogo.

Implement request #1736883; Updated ` (backtick) to latest from UCBLogo.

Fix bug #1602928; Turtle now draw a dot at both endpoints of a movement, instead of just at one of them. This fixes little dots that used to get left behind when changing the pen color and moving backward to erase the line you just drew.