say yes to all system related upgrade questions

Author: zalox

appveyor.yml

@@ -5,7 +5,7 @@ environment:
   MSYSTEM: MSYS
 
 before_build:
-  - C:\msys64\usr\bin\pacman --noconfirm --sync --refresh --refresh --sysupgrade --sysupgrade
+  - C:\msys64\usr\bin\pacman --noconfirm --ask 20 --sync --refresh --refresh --sysupgrade --sysupgrade
   - C:\msys64\usr\bin\pacman --noconfirm --sync --refresh --refresh pacman
   - C:\msys64\usr\bin\pacman --noconfirm --sync --refresh --refresh git
   - C:\msys64\usr\bin\bash -lc "$(cygpath ${APPVEYOR_BUILD_FOLDER})/ci/update_ci.sh"