From 34eac932401dece187d456af8773585b3d6bb333 Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Mon, 24 Sep 2018 15:57:46 -0700
Subject: [PATCH] Revert "appveyor: Try without echo "" hack."

This reverts commit 6315e8b6c3c17424c6eaf5cc9b1c11729d7315ba.
---
 appveyor.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/appveyor.yml b/appveyor.yml
index 38a9cd7c4..91b5d1a67 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -76,8 +76,8 @@ test_script:
       if ($env:BUILD_TYPE -Match "stack") {
         stack --version
         stack path
-        stack clean
-        stack install --stack-yaml $env:STACK_YAML $env:STACK_BUILD_OPTS $env:STACK_FLAGS pandoc pandoc-citeproc
+        echo "" | stack clean
+        echo "" | stack install --stack-yaml $env:STACK_YAML $env:STACK_BUILD_OPTS $env:STACK_FLAGS pandoc pandoc-citeproc
       } else {
         cabal --version
         cabal update