File reproducible.patch of Package wsmancli

upstreaming at https://github.com/Openwsman/wsmancli/pull/8

commit c277ec5217d3aa3748b9420bbdc7f5d4973a010b
Author: Bernhard M. Wiedemann <bwiedemann suse.de>
Date:   Wed Mar 21 15:17:26 2018 +0100

    Use ChangeLog date instead of build date
    
    in order to make builds reproducible
    See https://reproducible-builds.org/ for why this is good.

Index: wsmancli-2.6.0/configure
===================================================================
--- wsmancli-2.6.0.orig/configure
+++ wsmancli-2.6.0/configure
@@ -16507,7 +16507,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 WSMAN_PKG=$PACKAGE_NAME
 
-PACKAGE_BUILDTS=`date +%Y%m%d%H%M`
+PACKAGE_BUILDTS=`date -u -r ChangeLog +%Y%m%d%H%M`