t9000-t9999: fix broken &&-chains

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t9164-git-svn-dcommit-concurrent.sh b/t/t9164-git-svn-dcommit-concurrent.sh
index d8464d4..90346ff 100755
--- a/t/t9164-git-svn-dcommit-concurrent.sh
+++ b/t/t9164-git-svn-dcommit-concurrent.sh
@@ -12,7 +12,7 @@
 	svn_cmd checkout "$svnrepo" work.svn &&
 	(
 		cd work.svn &&
-		echo >file && echo > auto_updated_file
+		echo >file && echo > auto_updated_file &&
 		svn_cmd add file auto_updated_file &&
 		svn_cmd commit -m "initial commit"
 	) &&