hush: fix improper handling of newline and hash chars in few corner cases

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
diff --git a/shell/hush_test/hush-parsing/eol1.right b/shell/hush_test/hush-parsing/eol1.right
new file mode 100644
index 0000000..31c896f
--- /dev/null
+++ b/shell/hush_test/hush-parsing/eol1.right
@@ -0,0 +1 @@
+Done:0