OPER-5924 Forward-port fix for asset prefix w/ trailing slash

lib/asset_sync/storage.rb

@@ -140,7 +140,7 @@ def get_local_files
 
       log "Using: Directory Search of #{path}/#{self.config.assets_prefix}"
       Dir.chdir(path) do
-        to_load = self.config.assets_prefix.present? ? "#{self.config.assets_prefix}/**/**" : '**/**'
+        to_load = self.config.assets_prefix.present? ? File.join(self.config.assets_prefix, '/**/**') : '**/**'
         Dir[to_load]
       end
     end

lib/asset_sync/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module AssetSync
-  VERSION = "2.15.1"
+  VERSION = "2.15.1.1"
 end