[php-maint] Bug#855844: say enabling

[積丹尼 Dan Jacobson]

Package: php7.0-cli
Version: 7.0.16-2
Severity: minor

We see

Setting up php7.0-cli (7.0.16-2) ...
Replacing config file /etc/php/7.0/cli/php.ini with new version
php_invoke: Enable module zlib for cli sapi

I would say "enabling" else it literally is asking the user to enable
something. Also you say Replacing, not Replace, so you should also say Enabling.