scrub 2.6.1

Closes Homebrew/homebrew#39918.

Signed-off-by: Xu Cheng <xucheng@me.com>

Formula/scrub.rb

@@ -1,19 +1,21 @@
-require 'formula'
-
 class Scrub < Formula
-  homepage 'http://code.google.com/p/diskscrub/'
-  url 'https://diskscrub.googlecode.com/files/scrub-2.5.2.tar.bz2'
-  sha1 '863e5894e6acb3f922cb25f58e260f9c59b55c14'
+  homepage "https://code.google.com/p/diskscrub/"
+  url "https://github.com/chaos/scrub/releases/download/2.6.1/scrub-2.6.1.tar.gz"
+  mirror "https://mirrors.kernel.org/debian/pool/main/s/scrub/scrub_2.6.1.orig.tar.gz"
+  sha256 "43d98d3795bc2de7920efe81ef2c5de4e9ed1f903c35c939a7d65adc416d6cb8"
 
-  # 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
-  patch :DATA
+  head do
+    url "https://github.com/chaos/scrub.git"
+    depends_on "automake" => :build
+    depends_on "autoconf" => :build
+    depends_on "libtool" => :build
+  end
 
   def install
+    system "./autogen.sh" if build.head?
     system "./configure", "--disable-dependency-tracking",
                           "--prefix=#{prefix}"
-    system "make install"
+    system "make", "install"
   end
 
   test do
@@ -26,27 +28,3 @@ class Scrub < Formula
     assert !File.exist?(path)
   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