Fixed #9920 - Clarfied empty string vs. localhost in settings database host.

Thanks chromano for the draft patch.

django/conf/project_template/project_name/settings.py

@@ -13,10 +13,11 @@ DATABASES = {
     'default': {
         'ENGINE': 'django.db.backends.', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
         'NAME': '',                      # Or path to database file if using sqlite3.
-        'USER': '',                      # Not used with sqlite3.
-        'PASSWORD': '',                  # Not used with sqlite3.
-        'HOST': '',                      # Set to empty string for localhost. Not used with sqlite3.
-        'PORT': '',                      # Set to empty string for default. Not used with sqlite3.
+        # The following settings are not used with sqlite3:
+        'USER': '',
+        'PASSWORD': '',
+        'HOST': '',                      # Empty for localhost through domain sockets or '127.0.0.1' for localhost through TCP.
+        'PORT': '',                      # Set to empty string for default.
     }
 }