test/ShellTests.hs: add an explicit export list.

diff --git a/test/ShellTests.hs b/test/ShellTests.hs
index 6a55da0495d2fb7848e4da3730feca3c5e275f0e..8874fcfeac6555fb820a91945946a2b76eb50c6a 100644 (file)
--- a/test/ShellTests.hs
+++ b/test/ShellTests.hs
@@ -1,4 +1,4 @@
-module Main
+module Main (main)
 where
 
 import System.Process (