This controls where comments and other text wraps. 70 is the default
value, so this simply returns it to the default for people who have
overridden it. Most notmuch code already adheres to this.
This file causes emacs to automatically set the correct style
variables to control indentation, etc. One more thing to make it
easier for everyone to collaborate with a consistent coding style.
Signed-off-by: Jameson Rollins <jrollins@finestructure.net>