Restore comment about second return,

but put it in the right function.
https://github.com/keplerproject/luarocks/pull/346#discussion_r28008668

1 files changed, 3 insertions, 2 deletions

diff --git a/src/luarocks/persist.lua b/src/luarocks/persist.lua
index ba3789d1..354b17c3 100644
--- a/src/luarocks/persist.lua
+++ b/src/luarocks/persist.lua
@@ -53,8 +53,9 @@ end
 -- @param filename string: the name of the file.
 -- @param tbl table or nil: if given, this table is used to store
 -- loaded values.
--- @return table or (nil, string, string): a table with the file's assignments
--- as fields, or nil, an error message and an error code ("open"; couldn't open the file,
+-- @return (table, table) or (nil, string, string): a table with the file's assignments
+-- as fields and set of undefined globals accessed in file,
+-- or nil, an error message and an error code ("open"; couldn't open the file,
 -- "load"; compile-time error, or "run"; run-time error)
 -- in case of errors.
 function persist.load_into_table(filename, tbl)