Apache envvars not being loaded

[evertramos]

Hello there!

It seems for some reason that this merge did not correct the envvar for php-7.1.8-apache as of https://github.com/docker-library/php/pull/251/files

Same point of #97

[yosifkit]

7.1-rc1 was added in #296 and has the same changes as #251.

php/7.1/apache/apache2-foreground

Lines 4 to 16 in c8a1150

	# Note: we don't just use "apache2ctl" here because it itself is just a shell-script wrapper around apache2 which provides extra functionality like "apache2ctl start" for launching apache2 in the background.
	# (also, when run as "apache2ctl <apache args>", it does not use "exec", which leaves an undesirable resident shell process)
	: "${APACHE_CONFDIR:=/etc/apache2}"
	: "${APACHE_ENVVARS:=$APACHE_CONFDIR/envvars}"
	if test -f "$APACHE_ENVVARS"; then
	. "$APACHE_ENVVARS"
	fi
	# Apache gets grumpy about PID files pre-existing
	: "${APACHE_RUN_DIR:=/var/run/apache2}"
	: "${APACHE_PID_FILE:=$APACHE_RUN_DIR/apache2.pid}"
	rm -f "$APACHE_PID_FILE"