mattn/calendar-vim — pull request #20 by KainokiKaede (2013-11-25 17:41:45+00:00)
Title: Set filetype to markdown when loading a diary file

In default, Vim considers ".md" files as modula2 files. While many
people seem to use plugins such as "vim-markdown", which override
filetype of modula2, it seems to be more considerate to set the
filetype manually when a diary file is loaded.