Fixed #21113 -- Made LogEntry.change_message language independent

Thanks Tim Graham for the review.

tests/admin_utils/admin.py

@@ -1,7 +1,18 @@
 from django.contrib import admin
 
-from .models import Article, ArticleProxy
+from .models import Article, ArticleProxy, Site
+
+
+class ArticleInline(admin.TabularInline):
+    model = Article
+    fields = ['title']
+
+
+class SiteAdmin(admin.ModelAdmin):
+    inlines = [ArticleInline]
+
 
 site = admin.AdminSite(name='admin')
 site.register(Article)
 site.register(ArticleProxy)
+site.register(Site, SiteAdmin)