use newer AppVeyor image

(because the old one doesn't have .NET Core installed)
christianspecht · Jan 20, 2020 · 2fd78f9 · 2fd78f9
1 parent b90151a
commit 2fd78f9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/appveyor.yml b/appveyor.yml
@@ -1,5 +1,5 @@
 version: "{build}"
-image: Visual Studio 2017
+image: Visual Studio 2019
 branches:
   only:
   - master