Use correct path separator in RSpec setup

Author: mvz

lib/aruba/rspec.rb

@@ -13,7 +13,8 @@
       setup_aruba
 
       # Modify PATH to include project/bin
-      prepend_environment_variable 'PATH', aruba.config.command_search_paths.join(':') + ':'
+      prepend_environment_variable 'PATH',
+        aruba.config.command_search_paths.join(File::PATH_SEPARATOR) + File::PATH_SEPARATOR
 
       # Use configured home directory as HOME
       set_environment_variable 'HOME', aruba.config.home_directory

spec/aruba/rspec_spec.rb

@@ -19,7 +19,7 @@
     end
 
     it 'includes configured command search paths in PATH' do
-      expect(ENV['PATH']).to include aruba.config.command_search_paths.join(':')
+      expect(ENV['PATH']).to include aruba.config.command_search_paths.join(File::PATH_SEPARATOR)
     end
   end
 end