handle language tags for descriptions are unique strings to be shared

apt-pkg/pkgcachegen.cc

@@ -833,7 +833,7 @@ map_ptrloc pkgCacheGenerator::NewDescription(pkgCache::DescIterator &Desc,
    // Fill it in
    Desc = pkgCache::DescIterator(Cache,Cache.DescP + Description);
    Desc->ID = Cache.HeaderP->DescriptionCount++;
-   map_ptrloc const idxlanguage_code = WriteStringInMap(Lang);
+   map_ptrloc const idxlanguage_code = WriteUniqString(Lang);
    if (unlikely(idxlanguage_code == 0))
       return 0;
    Desc->language_code = idxlanguage_code;

debian/changelog

@@ -5,6 +5,7 @@ apt (0.9.7.8~exp2+nmu1) UNRELEASED; urgency=low
   * apt-pkg/pkgcachegen.cc:
     - do not store the MD5Sum for every description language variant as
       it will be the same for all so it can be shared to save cache space
+    - handle language tags for descriptions are unique strings to be shared
 
  -- David Kalnischkies <kalnischkies@gmail.com>  Sun, 10 Mar 2013 12:23:24 +0100