sh testsuite: create hush-heredoc/* and move files around

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/hush_test/hush-heredoc/heredoc2.right b/shell/hush_test/hush-heredoc/heredoc2.right
new file mode 100644
index 0000000..a486f1a
--- /dev/null
+++ b/shell/hush_test/hush-heredoc/heredoc2.right
@@ -0,0 +1,2 @@
+bar
+bar