scrub 2.5.2

- Upgrade to 2.5.2
- Add a patch to add <sys/types.h> otherwise missing symbols
- Add a patch to make a non-void function return a `0`
- Add comments for the patch linking the upstream bug report.
- Works with superenv on 10.8.2

Closes Homebrew/homebrew#15717.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Formula/scrub.rb

@@ -1,13 +1,42 @@
 require 'formula'
 
 class Scrub < Formula
-  url 'http://diskscrub.googlecode.com/files/scrub-2.4.tar.bz2'
   homepage 'http://code.google.com/p/diskscrub/'
-  sha1 '1065cde68549cd8b013f2b82bc5bb24922010da7'
+  url 'https://diskscrub.googlecode.com/files/scrub-2.5.2.tar.bz2'
+  sha1 '863e5894e6acb3f922cb25f58e260f9c59b55c14'
+
+  # in src/genrand.c:109 the `return;` statement should be `return 0;` for clang
+  # in src/util.h we need <sys/types.h> to get off_t which is reported:
+  # https://code.google.com/p/diskscrub/issues/detail?id=21
+  def patches; DATA; end
 
   def install
-    system "./configure", "--disable-debug", "--disable-dependency-tracking",
-                          "--prefix=#{prefix}", "--mandir=#{man}"
+    system "./configure", "--disable-dependency-tracking",
+                          "--prefix=#{prefix}"
     system "make install"
   end
 end
+
+__END__
+--- a/src/genrand.c	2012-06-20 15:00:27.000000000 -0700
++++ b/src/genrand.c	2012-10-27 22:02:27.000000000 -0700
+@@ -106,7 +106,7 @@
+                 buf[n] = result;
+             }
+ #endif
+-            return;
++            return 0;
+         }
+     }
+
+--- a/src/util.h	2012-06-20 15:00:27.000000000 -0700
++++ b/src/util.h	2012-10-27 22:10:32.000000000 -0700
+@@ -24,6 +24,8 @@
+  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ \*****************************************************************************/
+
++#include <sys/types.h>
++
+ #ifdef HAVE_STDBOOL_H
+ #include <stdbool.h>
+ #else