Merge pull request #33 from wp-cli/32-fix-circleci-mysqli-ext

Add `sudo -E` flag

Author: schlessera

.circleci/config.yml

@@ -17,7 +17,7 @@ jobs:
     - run: |
         sudo sh -c "printf '\ndeb http://ftp.us.debian.org/debian sid main\n' >> /etc/apt/sources.list"
         sudo apt-get update
-        sudo docker-php-ext-install mysqli
+        sudo -E docker-php-ext-install mysqli
         sudo apt-get install -y mysql-client-5.7
     - run: |
         echo -e "memory_limit = 1024M" | sudo tee /usr/local/etc/php/php.ini > /dev/null