[orca] Fix regression due to language+dialect parsing

[Joanmarie Diggs <joanied src gnome org>]

commit edfd784db0e296066f4501649f35a3b8962cde32
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Wed Jan 12 10:59:02 2022 +0100

    Fix regression due to language+dialect parsing

 src/orca/script_utilities.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/orca/script_utilities.py b/src/orca/script_utilities.py
index 3c84d4371..d02f27238 100644
--- a/src/orca/script_utilities.py
+++ b/src/orca/script_utilities.py
@@ -3291,7 +3291,7 @@ class Utilities:
             language = attrs.get("language", "")
             dialect = ""
             if "-" in language:
-                language, dialect = language.split("-")
+                language, dialect = language.split("-", 1)
             if rv and lastLanguage == language and lastDialect == dialect:
                 rv[-1] = rv[-1][0], end, language, dialect
             else: