tar: fix tar -T to add entries in the exact order as the input list

This fixes tar to order files in tarball correctly in this case:

$ touch 1 2 3; echo -e '1\n2\n3' | tar -T- -c | tar t
1
2
3

Signed-off-by: SASAKI Suguru <suguru@sonik.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/archival/tar.c b/archival/tar.c
index c0ceff5..3cd033b 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -679,14 +679,12 @@
 			char *cp = last_char_is(line, '/');
 			if (cp > line)
 				*cp = '\0';
-			llist_add_to(&newlist, line);
+			llist_add_to_end(&newlist, line);
 		}
 		fclose(src_stream);
 	}
 	return newlist;
 }
-#else
-# define append_file_list_to_list(x) 0
 #endif
 
 //usage:#define tar_trivial_usage