cat: Fix immediate output of processed data

Introduced by commit 790892db, 2006-06-08 "Ensure that cat works ...".
* NEWS: Mention the bugfix.
* src/cat.c (cat): Fix the typo which stopped the writing
of processed data before a blocking read() is done.
* tests/misc/cat-buf: Add to ensure processed data is not buffered.
* tests/Makefile.am: Reference the new test.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/cat.c b/src/cat.c
index 18fa1f150..bdc011017 100644
--- a/src/cat.c
+++ b/src/cat.c
@@ -333,7 +333,7 @@ cat (
 		input_pending = true;
 #endif
 
-	      if (input_pending)
+	      if (!input_pending)
 		write_pending (outbuf, &bpout);
 
 	      /* Read more input into INBUF.  */