Find curl in appveyor

ndmitchell · web-flow · commit f981a217e555 · 2017-03-22T20:34:34.000Z
diff --git a/appveyor.yml b/appveyor.yml
@@ -4,6 +4,7 @@ cache:
 build: off
 
 before_test:
+- set PATH=C:\Program Files\Git\mingw64\bin;%PATH% # for curl
 - curl -ostack.zip -L --insecure http://www.stackage.org/stack/windows-i386
 - 7z x stack.zip stack.exe
 
