In Atom, ctrl-k deletes from the cursor to the end of the wrapped line (the command is
editor:cut-to-end-of-line), irrespective of wrapping. In standard OS X apps (e.g. TextEdit) ctrl-k (the command is
deleteToEndOfParagraph) deletes from the cursor to the end of the unwrapped line. (i.e. it can delete multiple lines, if wrapping is enabled.)
How can I get OS X’s behavior in Atom?