struct rev_info: convert prune_data to struct pathspec

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/add.c b/builtin/add.c
index 12b964e..5f817ad 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -86,7 +86,7 @@
 	struct rev_info rev;
 	init_revisions(&rev, prefix);
 	setup_revisions(0, NULL, &rev, NULL);
-	rev.prune_data = pathspec;
+	init_pathspec(&rev.prune_data, pathspec);
 	rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
 	rev.diffopt.format_callback = update_callback;
 	data.flags = flags;