Correct Polish language code for legacy alias

diff --git a/errors/alias-upgrade b/errors/alias-upgrade
index 76fa0ed7bf593fa63b1033771128c938c0a9da2c..92754c3a2d68bb142e909dfb954cec51aed557c2 100644 (file)
--- a/errors/alias-upgrade
+++ b/errors/alias-upgrade
@@ -20,7 +20,7 @@ ja    Japanese
 ko     Korean
 lt     Lithuanian
 nl     Dutch
-po     Polish
+pl     Polish
 pt     Portuguese
 ro     Romanian
 ru     Russian-1251 Russian-koi8-r