add new locale for l10n-maven-plugin

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1388749 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index e102138..8a1b441 100644
--- a/pom.xml
+++ b/pom.xml
@@ -417,6 +417,7 @@
                 <locale>de</locale>
                 <locale>pt_BR</locale>
                 <locale>sv</locale>
+                <locale>es_AR</locale>
               </locales>
             </configuration>
           </plugin>