diff -Nru dh-autoreconf-12~ubuntu16.04.1~c42.ppa1/debian/changelog dh-autoreconf-13~ubuntu16.04.1~c42.ppa1/debian/changelog
--- dh-autoreconf-12~ubuntu16.04.1~c42.ppa1/debian/changelog	2016-09-05 03:48:30.000000000 +0000
+++ dh-autoreconf-13~ubuntu16.04.1~c42.ppa1/debian/changelog	2017-02-25 17:22:08.000000000 +0000
@@ -1,8 +1,16 @@
-dh-autoreconf (12~ubuntu16.04.1~c42.ppa1) xenial; urgency=medium
+dh-autoreconf (13~ubuntu16.04.1~c42.ppa1) xenial; urgency=medium
 
   * No-change backport to xenial
 
- -- H.-Dirk Schmitt <dirk@computer42.org>  Mon, 05 Sep 2016 05:48:30 +0200
+ -- H.-Dirk Schmitt <dirk@computer42.org>  Sat, 25 Feb 2017 18:22:08 +0100
+
+dh-autoreconf (13) unstable; urgency=medium
+
+  * Speed-up: Use -exec ... + instead of -exec ... \; for find.
+    Thanks to Helmut Grohne and Tollef Fog Heen for the suggestion
+  * Update Standards-Version and point Vcs fields to https
+
+ -- Julian Andres Klode <jak@debian.org>  Fri, 06 Jan 2017 20:52:54 +0100
 
 dh-autoreconf (12) unstable; urgency=medium
 
diff -Nru dh-autoreconf-12~ubuntu16.04.1~c42.ppa1/debian/control dh-autoreconf-13~ubuntu16.04.1~c42.ppa1/debian/control
--- dh-autoreconf-12~ubuntu16.04.1~c42.ppa1/debian/control	2016-04-02 21:44:18.000000000 +0000
+++ dh-autoreconf-13~ubuntu16.04.1~c42.ppa1/debian/control	2017-01-06 19:52:54.000000000 +0000
@@ -3,9 +3,9 @@
 Priority: optional
 Maintainer: Julian Andres Klode <jak@debian.org>
 Build-Depends: debhelper (>= 9)
-Standards-Version: 3.9.7
-Vcs-Git: git://anonscm.debian.org/collab-maint/dh-autoreconf.git
-Vcs-Browser: http://anonscm.debian.org/gitweb/?p=collab-maint/dh-autoreconf.git
+Standards-Version: 3.9.8
+Vcs-Git: https://anonscm.debian.org/git/collab-maint/dh-autoreconf.git
+Vcs-Browser: https://anonscm.debian.org/git/collab-maint/dh-autoreconf.git
 
 Package: dh-autoreconf
 Architecture: all
diff -Nru dh-autoreconf-12~ubuntu16.04.1~c42.ppa1/dh_autoreconf dh-autoreconf-13~ubuntu16.04.1~c42.ppa1/dh_autoreconf
--- dh-autoreconf-12~ubuntu16.04.1~c42.ppa1/dh_autoreconf	2016-04-02 21:44:18.000000000 +0000
+++ dh-autoreconf-13~ubuntu16.04.1~c42.ppa1/dh_autoreconf	2017-01-06 19:52:54.000000000 +0000
@@ -142,7 +142,7 @@
 }
 
 my %modes = (
-    'md5' => "find $find_options -type f -exec md5sum {} \\;",
+    'md5' => "find $find_options -type f -exec md5sum {} +",
     'timesize' => "find $find_options -type f -printf \"%s|%T@  %p\n\""
 );