review dockerinit build and installation

even we don't use dockerinit, we should still install
it because that is expected.

Also fix the build for gcc-go regarding dockerinit

OBS-URL: https://build.opensuse.org/package/show/Virtualization:containers/docker?expand=0&rev=61

docker.spec

@@ -189,8 +189,10 @@ install -d %{buildroot}%{go_contribdir}
 install -d %{buildroot}%{_bindir}
 %ifarch %go_arches
 install -D -m755 bundles/%{version}/dynbinary/%{name}-%{version} %{buildroot}/%{_bindir}/%{name}
+install -D -m755 bundles/%{version}/dynbinary/dockerinit-%{version} %{buildroot}/%{_prefix}/lib/docker/dockerinit
 %else
 install -D -m755 bundles/%{version}/dyngccgo/%{name}-%{version} %{buildroot}/%{_bindir}/%{name}
+install -D -m755 bundles/%{version}/dyngccgo/dockerinit-%{version} %{buildroot}/%{_prefix}/lib/docker/dockerinit
 %endif
 install -d %{buildroot}/%{_prefix}/lib/docker
 install -Dd -m 0755 \

fix-docker-init.patch

@@ -8,3 +8,15 @@ diff -Naur a/hack/make/.dockerinit b/hack/make/.dockerinit
 +/usr/bin/strip -s $DEST/dockerinit-$VERSION
  # sha1 our new dockerinit to ensure separate docker and dockerinit always run in a perfect pair compiled for one another
  export DOCKER_INITSHA1=$($sha1sum "$DEST/dockerinit-$VERSION" | cut -d' ' -f1)
+diff --git a/hack/make/.dockerinit-gccgo b/hack/make/.dockerinit-gccgo
+index 3caa526..f272d29 100644
+--- a/hack/make/.dockerinit-gccgo
++++ b/hack/make/.dockerinit-gccgo
+@@ -27,5 +27,6 @@ else
+        exit 1
+ fi
+ 
++/usr/bin/strip -s $DEST/dockerinit-$VERSION
+ # sha1 our new dockerinit to ensure separate docker and dockerinit always run in a perfect pair compiled for one another
+ export DOCKER_INITSHA1=$($sha1sum "$DEST/dockerinit-$VERSION" | cut -d' ' -f1)
+