pod2man 4.03

This is needed to build documentation for some software on older versions
of OS X. For example, wget needs it on 10.6 and below.

Fixes Homebrew/legacy-homebrew#46566.

Formula/pod2man.rb

@@ -0,0 +1,22 @@
+class Pod2man < Formula
+  desc "perl documentation generator"
+  homepage "http://www.eyrie.org/~eagle/software/podlators/"
+  url "http://archives.eyrie.org/software/perl/podlators-4.03.tar.xz"
+  sha256 "4694326b35f569dafc4226398b25d5c82c86ed485039effdeb4f14c2ae5b7032"
+
+  keg_only :provided_by_osx
+
+  def install
+    system "perl", "Makefile.PL", "INSTALL_BASE=#{prefix}"
+    system "make", "install"
+
+    # makefile installs manpages into a root man directory
+    share.install prefix/"man"
+  end
+
+  test do
+    (testpath/"test.pod").write "=head2 Test heading\n"
+    manpage = shell_output("#{bin}/pod2man #{testpath}/test.pod")
+    assert_match '.SS "Test heading"', manpage
+  end
+end