Accepting request 631254 from home:cyphar:containers:reproducible

- Add patch to make package reproducible, which is a backport of
  https://github.com/docker/cli/pull/1306. boo#1047218
  + bsc1047218-0001-man-obey-SOURCE_DATE_EPOCH-when-generating-man-pages.patch

OBS-URL: https://build.opensuse.org/request/show/631254
OBS-URL: https://build.opensuse.org/package/show/Virtualization:containers/docker?expand=0&rev=263

docker.spec

@@ -82,6 +82,8 @@ Patch400:       bsc1073877-0001-apparmor-allow-receiving-of-signals-from-docker-
 Patch401:       bsc1073877-0002-apparmor-clobber-docker-default-profile-on-start.patch
 # SUSE-BACKPORT: Backport of https://github.com/docker/cli/pull/1242. bsc#1100727
 Patch402:       bsc1100727-0001-build-add-buildmode-pie.patch
+# SUSE-BACKPORT: Backport of https://github.com/docker/cli/pull/1306. boo#1047218
+Patch403:       bsc1047218-0001-man-obey-SOURCE_DATE_EPOCH-when-generating-man-pages.patch
 # SUSE-FEATURE: Add support to mirror inofficial/private registries
 #               (https://github.com/moby/moby/pull/34319)
 Patch500:       private-registry-0001-Add-private-registry-mirror-support.patch
@@ -261,6 +263,8 @@ docker container runtime configuration for kubeadm
 %patch401 -p1
 # bsc#1100727
 %patch402 -p1
+# boo#1047218
+%patch403 -p1
 %if "%flavour" == "kubic"
 # PATCH-SUSE: Mirror patch.
 %patch500 -p1