whitespace fixes

diff --git a/archival/dpkg.c b/archival/dpkg.c
index 28913d2..671aae7 100644
--- a/archival/dpkg.c
+++ b/archival/dpkg.c
@@ -1169,7 +1169,7 @@
 	file_list = NULL;
 	count = 0;
 	while ((line = xmalloc_fgetline(list_stream)) != NULL) {
-//TODO: zeroing xrealloc_vector? 
+//TODO: zeroing xrealloc_vector?
 		file_list = xrealloc_vector(file_list, 2, count);
 		file_list[count++] = line;
 		file_list[count] = NULL;