thoughtbot/guides — pull request #182 by sgrif (2014-06-04 15:18:40+00:00)
Title: Prefer leading dot for multi-line method calls

The same arguments apply here as for #167.

With a trailing dot on method calls broken across multiple lines, adding
an additional method call causes a deletion and two insertions in git
diffs.

Using a leading dot, adding an additional method call causes only a
single insertion, and the order can be freely moved without having to
worry about which call was the last line previously.