Simplify the process of perltidy'ing our Perl files.

Tom Lane <tgl@sss.pgh.pa.us>

Commit: 05d8dec690e9719ff9a1830f5492864104275b5e
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2016-08-15T15:32:09Z
Releases: 9.6.0
Simplify the process of perltidy'ing our Perl files.

Wrap the perltidy invocation into a shell script to reduce the risk of
copy-and-paste errors.  Include removal of *.bak files in the script,
so they don't accidentally get committed.  Improve the directions in
the README file.

Files