This is the first run of the Perl-based pgindent script.  Also update
pgindent instructions.

Fujii Masao and me.

Use correct type for "result", fix bogus strftime argument, don't use
unnecessary static variables, improve comments.

Andres Freund and Tom Lane

rmgrdesc.c is not auto-generated now, though it apparently was the last
time the Makefile was updated.

... as well a update copyrights statements to 2013.

Noted by Thom Brown and Peter Geoghegan

Harmless, but it's certainly better like this.

Noticed by Andres Freund

This program relies on rm_desc backend routines and the xlogreader
infrastructure to emit human-readable rendering of WAL records.

Author: Andres Freund, with many reworks by Álvaro
Reviewed (in a much earlier version) by Peter Eisentraut