25.5 IntelliJ Final Newline
20210312 Many editors will ensure that there is a newline (linefeed) at the end of a file on saving the file, as is expected by many tools and when processing a file. This ensures a common standard for the end of a file and when two files are being concatenated, for example, the second file always starts on a newline.
IntelliJ defaults to not checking for the final newline. To have IntelliJ add a newline on saving a file, if required, we change a setting:
Settings -> Editor -> General -> Ensure line feed at file end on Save
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