Add swatchdog package

packages/swatchdog.rb

+require 'package'
+
+class Swatchdog < Package
+  description "swatchdog.pl started out as swatch, the 'simple watchdog' for activity monitoring log files produced by UNIX's syslog facility."
+  homepage 'https://sourceforge.net/projects/swatch/'
+  version '3.2.4'
+  source_url 'https://downloads.sourceforge.net/project/swatch/swatchdog/swatchdog-3.2.4.tar.gz'
+  source_sha256 '5bb644d3750ee89b9aecab797df66b28b9fd174a5f0f96cd62367af8975b4f63'
+
+  binary_url ({
+  })
+  binary_sha256 ({
+  })
+
+  depends_on 'perl'
+
+  def self.build
+    system 'cpan -i File::Tail'
+    system 'cpan -i Date::Calc'
+    system 'cpan -i Date::Parse'
+    system 'cpan -i inc::latest'
+    system 'perl Makefile.PL'
+    system 'make'
+  end
+
+  def self.install
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+  end
+end