Index: trunk/src/org/openstreetmap/josm/tools/I18n.java
===================================================================
--- trunk/src/org/openstreetmap/josm/tools/I18n.java	(revision 19241)
+++ trunk/src/org/openstreetmap/josm/tools/I18n.java	(revision 19244)
@@ -159,5 +159,6 @@
     // Matches ISO-639 two and three letters language codes + scripts
     private static final Pattern LANGUAGE_NAMES = Pattern.compile(
-            "name:(\\p{Lower}{2,3})(?:[-_](?i:(" + String.join("|", HIRAGANA, KATAKANA, LATIN, PINYIN, LATINPINYIN, ROMAJI, HANI, HANS, HANT, BOPOMOFO) + ")))?");
+            "name:(\\p{Lower}{2,3})(?:[-_](?i:(" + String.join("|", HIRAGANA, KATAKANA,
+            LATIN, PINYIN, LATINPINYIN, ROMAJI, HANI, HANS, HANT, BOPOMOFO) + ")))?");
 
     private static String format(String text, Object... objects) {