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-rw-r--r--luaotfload-diagnostics.lua2
1 files changed, 2 insertions, 0 deletions
diff --git a/luaotfload-diagnostics.lua b/luaotfload-diagnostics.lua
index f191913..9d0eff6 100644
--- a/luaotfload-diagnostics.lua
+++ b/luaotfload-diagnostics.lua
@@ -25,6 +25,8 @@ local lfsreadlink = lfs.readlink
local md5 = require "md5"
local md5sumhexa = md5.sumhexa
+local ioopen = io.open
+
local osgetenv = os.getenv
local osname = os.name
local osremove = os.remove