Altered hashcache retrieve function to return only the second field rather than 2+

This change is necessary since we now store the title in addition to the URL.
This will not be a problem because the URL will not contain spaces.

hashcache

@@ -51,7 +51,7 @@ _retrieve()
   # always return the intended result
   grep "^$hash" "$cachefile" \
     | tail -n1 \
-    | cut -d' ' -f2-
+    | cut -d' ' -f2
 }
 
 # clears the cache file