build: don't tell "make clean" to remove my '~' backup files

Hi Rich,

automake's policy on what to remove via "make clean" is reasonable:
if running build rules creates it, then "make clean" can and should remove it.
However, even if build rules happen
to create backup files, please remove only the specific ones
they can create, not all of the ones in a directory.  Just in case
someone relies on those and expect them to hang around...

>From 1e8be391ac17b4ddcf9671e8413d2660844e6993 Mon Sep 17 00:00:00 2001
From: Jim Meyering <meyering@redhat.com>
Date: Thu, 30 Apr 2009 15:47:52 +0200
Subject: [PATCH] build: don't tell "make clean" to remove my '~' backup files

* Makefile.am (CLEANFILES): Don't remove '~' backup files.
* daemon/Makefile.am: Ditto.
* examples/Makefile.am: Ditto.
* fish/Makefile.am: Ditto.
* images/Makefile.am: Ditto.
* inspector/Makefile.am: Ditto.
* java/Makefile.am: Ditto.
* ocaml/Makefile.am: Ditto.
* ocaml/examples/Makefile.am: Ditto.
* perl/Makefile.am: Ditto.
* python/Makefile.am: Ditto.
* ruby/Makefile.am: Ditto.
* src/Makefile.am: Ditto.

perl/Makefile.am

@@ -26,8 +26,6 @@ EXTRA_DIST = \
 	t/*.t \
 	typemap
 
-CLEANFILES = *~ examples/*~ t/*~
-
 if HAVE_PERL
 
 # Interfacing automake and ExtUtils::MakeMaker known to be