Change TLDR_CACHE_MAX_AGE default to one week (#170)

Author: CleanMachine1

README.md

@@ -77,7 +77,7 @@ Cache is downloaded from `TLDR_DOWNLOAD_CACHE_LOCATION` (defaults to the one des
 * `TLDR_CACHE_ENABLED` (default is `1`):
     * If set to `1`, the client will first try to load from cache, and fall back to fetching from the internet if the cache doesn't exist or is too old.
     * If set to `0`, the client will fetch from the internet, and fall back to the cache if the page cannot be fetched from the internet.
-* `TLDR_CACHE_MAX_AGE` (default is `24`): maximum age of the cache in hours to be considered as valid when `TLDR_CACHE_ENABLED` is set to `1`.
+* `TLDR_CACHE_MAX_AGE` (default is `168` hours, which is equivalent to a week): maximum age of the cache in hours to be considered as valid when `TLDR_CACHE_ENABLED` is set to `1`.
 
 #### Cache location
 

tldr.py

@@ -32,7 +32,7 @@
 
 USE_NETWORK = int(os.environ.get('TLDR_NETWORK_ENABLED', '1')) > 0
 USE_CACHE = int(os.environ.get('TLDR_CACHE_ENABLED', '1')) > 0
-MAX_CACHE_AGE = int(os.environ.get('TLDR_CACHE_MAX_AGE', 24))
+MAX_CACHE_AGE = int(os.environ.get('TLDR_CACHE_MAX_AGE', 24*7))
 
 URLOPEN_CONTEXT = None
 if int(os.environ.get('TLDR_ALLOW_INSECURE', '0')) == 1: