sysprep: add zypper to package-manager-cache operation

libzypp and zypper store their cache files in
/var/cache/zypp/{packages,raw,solv}/ and /var/cache/zypper/RPMS/
Add a single pattern to match both cases.

Signed-off-by: Olaf Hering <olaf@aepfle.de>

sysprep/sysprep_operation_package_manager_cache.ml

@@ -25,6 +25,8 @@ let package_manager_cache_perform g root =
   let packager = g#inspect_get_package_management root in
   let cache_dirs =
     match packager with
+    | "zypper" ->
+      Some (g#glob_expand "/var/cache/zypp*/*")
     | "yum" ->
       Some (g#glob_expand "/var/cache/yum/*")
     | "apt" ->