Call `os.spawn()` exit callback after `proc:wait()`.

Added tests for `os.spawn()`.

1 files changed, 1 insertions, 2 deletions

diff --git a/core/.os.luadoc b/core/.os.luadoc
index 1908c200..6c1b702b 100644
--- a/core/.os.luadoc
+++ b/core/.os.luadoc
@@ -31,7 +31,7 @@ module('os')
 -- @param exit_cb Optional Lua function that is called when the child process
 --   finishes. The child's exit status is passed.
 -- @return proc or nil plus an error message on failure
--- @usage os.spawn('lua buffer.filename', print)
+-- @usage os.spawn('lua ' .. buffer.filename, print)
 -- @usage proc = os.spawn('lua -e "print(io.read())"', print)
 --        proc:write('foo\n')
 -- @class function
@@ -84,4 +84,3 @@ function spawn_proc:close() end
 -- @param signal Optional Unix signal to send to *spawn_proc*. The default value
 --   is 9 (`SIGKILL`), which kills the process.
 function spawn_proc:kill() end
-]]