debugfs.c:
  Fixup one more missing use of lb->f instead stdout when printing the
  comma separator.
ChangeLog, util.c:
  util.c (open_pager): Set SIGPIPE to be ignored, so that quitting out
  	of the pager doesn't blow away debugfs.

diff --git a/debugfs/debugfs.c b/debugfs/debugfs.c
index c847fc6..43061ba 100644
--- a/debugfs/debugfs.c
+++ b/debugfs/debugfs.c
@@ -378,7 +378,7 @@
 	if (lb->first)
 		lb->first = 0;
 	else
-		printf(", ");
+		fprintf(lb->f, ", ");
 	if (blockcnt == -1)
 		fprintf(lb->f, "(IND):%d", *blocknr);
 	else if (blockcnt == -2)