replace() gets confused if you give it a singleton list as its parameter.

diff --git a/first/ackbuilder.lua b/first/ackbuilder.lua
index c7798e6..b59cb2a 100644 (file)
--- a/first/ackbuilder.lua
+++ b/first/ackbuilder.lua
@@ -253,7 +253,7 @@ local function dirname(...)
 end
 
 local function replace(files, pattern, repl)
-       return dotocollection(files,
+       return dotocollection({files},
                function(filename)
                        return filename:gsub(pattern, repl)
                end