Periodically log timestamps

[caseyscarborough]

It would be nice to periodically break to a new line in the log file and list a timestamp, similar to the following format:

Thu May 26 18:09:42 2016
[left-shift]it would be nice to p]eriodically break to w[del]a new line in the log file and list a te[del]imestamp.

Thu May 26 18:09:56 2016
similar to the following format:

Thu May 26 18:10:05 2016
[enter][enter]```[left-cmd]v[left-cmd]