cups: fix 24.20 compatibility

fixes #3721 (cherry picked from commit 2bf7f7c556)
2026-10-22 19:24:01 -04:00 · 2026-10-08 09:35:00 -04:00
1 changed files with 2 additions and 1 deletions
@@ -277,7 +277,8 @@ const (

 // ipp defaults
 const (
-	CharsetLanguage      = "en-US"
+	// cups 2.4.20+ validates this case-sensitively (lowercase only), and libcups itself sends lowercase
+	CharsetLanguage      = "en-us"
 	Charset              = "utf-8"
 	ProtocolVersionMajor = int8(2)
 	ProtocolVersionMinor = int8(0)