Add stdios to code dictionary too

grep.app finds a whole bunch of word-matches

codespell_lib/data/dictionary_code.txt

diff --git a/codespell_lib/data/dictionary_code.txt b/codespell_lib/data/dictionary_code.txt
index 5d79004..5d11a34 100644
--- a/codespell_lib/data/dictionary_code.txt
+++ b/codespell_lib/data/dictionary_code.txt
@@ -27,6 +27,7 @@
 sinc->sync, sink, since,
 sincs->syncs, sinks, since,
 stdio->studio
+stdios->studios
 stoll->still
 storaged->storage, stored,
 storaget->storage