libdpkg: Do not mark database names in writedb for translation

This actually makes life harder for translators, and it collides with
similar strings from updated-alternatives.

Suggested-by: Sven Joachim <svenjoac@gmx.de>

lib/dpkg/dump.c

@@ -363,7 +363,7 @@ void writedb(const char *filename, int available, int mustsync) {
   struct varbuf vb = VARBUF_INIT;
   int old_umask;
 
-  which = available ? _("available") : _("status");
+  which = available ? "available" : "status";
   oldfn= m_malloc(strlen(filename)+sizeof(OLDDBEXT));
   strcpy(oldfn,filename); strcat(oldfn,OLDDBEXT);
   newfn= m_malloc(strlen(filename)+sizeof(NEWDBEXT));