Don't rename .partial files in pg_receivexlog if an error occured

In 56c7d8d4 the behavior to keep .partial segments around
(considered corrupt) in case an connection failure occurs was
accidentally removed. This would lead to an incomplete segment
being considered complete.

Author: Michael Paquier

src/bin/pg_basebackup/receivelog.c

@@ -679,7 +679,7 @@ ReceiveXlogStream(PGconn *conn, StreamCtl *stream)
 	}
 
 error:
-	if (walfile != NULL && stream->walmethod->close(walfile, CLOSE_NORMAL) != 0)
+	if (walfile != NULL && stream->walmethod->close(walfile, CLOSE_NO_RENAME) != 0)
 		fprintf(stderr, _("%s: could not close file \"%s\": %s\n"),
 		  progname, current_walfile_name, stream->walmethod->getlasterror());
 	walfile = NULL;