remove trailing whitespace

diff --git a/archival/bz/bzlib.c b/archival/bz/bzlib.c
index 57a6974..f27050a 100644
--- a/archival/bz/bzlib.c
+++ b/archival/bz/bzlib.c
@@ -259,7 +259,7 @@
 	/*Bool progress_in  = False;*/
 	/*Bool progress_out = False;*/
 	EState* s = strm->state;
-	
+
 	while (1) {
 		if (s->state == BZ_S_OUTPUT) {
 			/*progress_out |=*/ copy_output_until_stop(s);