fix minor global warning

diff --git a/api.lua b/api.lua
index d19a643cae274d33154ca81e70d2778a2b205721..78bd43124319ff67114b327740a8e4cb47fc0df9 100644 (file)
--- a/api.lua
+++ b/api.lua
@@ -532,7 +532,7 @@ function signs_lib.update_sign(pos, fields)
        text = trim_input(text)
 
        local owner = meta:get_string("owner")
-       ownstr = ""
+       local ownstr = ""
        if owner ~= "" then ownstr = S("Locked sign, owned by @1\n", owner) end
 
        meta:set_string("text", text)