Innotop: add perlbrew support

Closes Homebrew/homebrew#19118.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

Formula/innotop.rb

@@ -6,9 +6,25 @@ class Innotop < Formula
   sha1 '4f8cbf6d01a1723a5c450d66e192610c5b28c4d7'
 
   depends_on 'DBD::mysql' => :perl
+  depends_on 'Term::ReadKey' => :perl
+
+  # Use /usr/bin/env in shebang; present upstream
+  def patches; DATA; end
 
   def install
     system "perl", "Makefile.PL", "PREFIX=#{prefix}"
     system "make install"
   end
 end
+
+__END__
+diff --git a/innotop b/innotop
+index 0606349..3fa033d 100755
+--- a/innotop
++++ b/innotop
+@@ -1,4 +1,4 @@
+-#!/usr/bin/perl
++#!/usr/bin/env perl
+ 
+ # vim: tw=160:nowrap:expandtab:tabstop=3:shiftwidth=3:softtabstop=3
+