Include more swap file extension types in gitignore (#528)
Include more swap file extension types in gitignore (#528)

After failing to create *.swp file, vim might create other *.swX
files which will make mess in the repository

Reference: http://vimdoc.sourceforge.net/htmldoc/recover.html#swap-file
cahirwpz/mimiker,cahirwpz/mimiker,cahirwpz/mimiker,cahirwpz/mimiker,cahirwpz/wifire-os