Add missing blank lines after class or function definition.

searx/engines/archlinux.py

@@ -34,6 +34,7 @@ def locale_to_lang_code(locale):
         locale = locale.split('_')[0]
     return locale
 
+
 # wikis for some languages were moved off from the main site, we need to make
 # requests to correct URLs to be able to get results in those languages
 lang_urls = {
@@ -70,6 +71,7 @@ def get_lang_urls(language):
         return lang_urls[language]
     return lang_urls['all']
 
+
 # Language names to build search requests for
 # those languages which are hosted on the main site.
 main_langs = {