:sig
String memcache_escape_key(String key)

:params
key : application key
return value : memcache-safe key string

:see
>sys
>memcache_escape_keys

:content
Normalizes whitespace in a memcache key to underscores before it is placed into a text protocol command.

:example
print(memcache_escape_key("a key with spaces"), "\n");
