email-gravatar.lua: fix for lua 5.2

diff --git a/filters/email-gravatar.lua b/filters/email-gravatar.lua
index 982e03098c9e25421f6366564a7099c4d6f2bcef..9feb61136f758bbe47d7f090e062fe91641d0957 100644 (file)
--- a/filters/email-gravatar.lua
+++ b/filters/email-gravatar.lua
@@ -7,7 +7,7 @@
 --     <http://mkottman.github.io/luacrypto/>
 --
 
-require("crypto")
+local crypto = require("crypto")
 
 function filter_open(email, page)
        buffer = ""