Use escape_glob_dir for client.d/conf.d

Passing the value of `escape_glob` to Dir.glob does
not always work correctly on Windows. Always use
forward slashes when globbing, even on Windows. We
now do this via `escape_glob_dir`, which calls
Pathname.cleanpath, which does the foward slash thing.

chef-config/lib/chef-config/workstation_config_loader.rb

@@ -136,7 +136,7 @@ def conf_d_files
       @conf_d_files ||=
         begin
           entries = Array.new
-          entries << Dir.glob(File.join(PathHelper.escape_glob(
+          entries << Dir.glob(File.join(PathHelper.escape_glob_dir(
             Config[:conf_d_dir]), "*.rb")) if Config[:conf_d_dir]
           entries.flatten.select do |entry|
             File.file?(entry)

lib/chef/application/client.rb

@@ -521,7 +521,7 @@ def load_config_d_file(f)
 
   def list_config_d_files
     if Chef::Config[:client_d_dir]
-      Dir.glob(File.join(Chef::Util::PathHelper.escape_glob(
+      Dir.glob(File.join(Chef::Util::PathHelper.escape_glob_dir(
         Chef::Config[:client_d_dir]), "*.rb"))
     else
       []

spec/unit/application/client_spec.rb

@@ -279,10 +279,10 @@
 
       it "loads the configuration in order" do
 
-        expect(::File).to receive(:read).with(Chef::Config.platform_specific_path("#{client_d_dir}/00-foo.rb")).and_return("")
-        expect(::File).to receive(:read).with(Chef::Config.platform_specific_path("#{client_d_dir}/01-bar.rb")).and_return("")
-        expect(app).to receive(:load_config_d_file).with("#{client_d_dir}/00-foo.rb").and_call_original.ordered
-        expect(app).to receive(:load_config_d_file).with("#{client_d_dir}/01-bar.rb").and_call_original.ordered
+        expect(::File).to receive(:read).with(Pathname.new("#{client_d_dir}/00-foo.rb").cleanpath.to_s).and_return("")
+        expect(::File).to receive(:read).with(Pathname.new("#{client_d_dir}/01-bar.rb").cleanpath.to_s).and_return("")
+        expect(app).to receive(:load_config_d_file).with(Pathname.new("#{client_d_dir}/00-foo.rb").cleanpath.to_s).and_call_original.ordered
+        expect(app).to receive(:load_config_d_file).with(Pathname.new("#{client_d_dir}/01-bar.rb").cleanpath.to_s).and_call_original.ordered
         app.reconfigure
       end
     end