Support getting io.popen results on file:close() on PUC-Rio Lua 5.1 (#53)

1 files changed, 2 insertions, 0 deletions

diff --git a/README.md b/README.md
index 80e7cbc..3ee6acf 100644
--- a/README.md
+++ b/README.md
@@ -117,6 +117,8 @@ For Lua 5.1 additionally:
 * `io.write` and `file:write` return file handle
 * `io.lines` and `file:lines` accept format arguments (like `io.read`)
   (see [here][10] and [here][11])
+* `file:close` returns three results when a process is opened
+  with `io.popen`
 * `debug.setmetatable` returns object
 * `debug.getuservalue` (see [here][12])
 * `debug.setuservalue` (see [here][13])