[CookbookVersionLoader#load_all_files] Do directory test after name c…

…heck

Simple string comparison is cheaper than a `stat`

Signed-off-by: David Crosby <dcrosby@fb.com>

lib/chef/cookbook/cookbook_version_loader.rb

@@ -215,7 +215,7 @@ def load_all_files
         Dir.entries(cookbook_path).each do |top_filename|
           # Skip top-level directories starting with "."
           top_path = File.join(cookbook_path, top_filename)
-          next if File.directory?(top_path) && top_filename.start_with?(".")
+          next if top_filename.start_with?(".") && File.directory?(top_path)
 
           # Use Find.find because it:
           # (a) returns any children, recursively