localed: don't fail if we cannot copy an xattr

We ignore xattr copy failures on all other cases, and we should do so
here too.

Fixes: #24106

src/locale/localed-util.c

@@ -746,7 +746,7 @@ int locale_gen_enable_locale(const char *locale) {
                         return r;
                 r = copy_xattr(fileno(fr), fileno(fw), COPY_ALL_XATTRS);
                 if (r < 0)
-                        return r;
+                        log_debug_errno(r, "Failed to copy all xattrs from old to new /etc/locale.gen file, ignoring: %m");
         }
 
         if (!write_new) {