Revert "feed: move to saneyaml"

This reverts commit a809433410.

lumbunglib/feed.py

@@ -13,7 +13,8 @@ import requests
 from bs4 import BeautifulSoup
 from slugify import slugify
 from re import compile as re_compile
-import saneyaml
+from re import sub
+yamlre = re_compile('[_\'\[\]\{\}\#\&\*\!\|\>\`\"\%]')
 
 
 def write_etag(feed_name, feed_data):
@@ -120,12 +121,12 @@ def sanitize_yaml (frontmatter):
             #some fields are lists
             l = []
             for i in v:
-                i = saneyaml.load(i)
+                i = yamlre.sub(r'\\\g<0>', i)
                 l.append(i)
             frontmatter[k] = l
 
         else:
-            v = saneyaml.load(v)
+            v = yamlre.sub(r'\\\g<0>', v)
             frontmatter[k] = v
 
     return frontmatter