Changed @*dir@ to @EXPANDED_*@ in sapi/fpm in PHP-7.0

[tangorcraft]

if vars not expanded in php-fpm.service, it may compile into something like this:

...
PIDFile=${prefix}/var/run/php-fpm.pid
ExecStart=${exec_prefix}/sbin/php-fpm --nodaemonize --fpm-config ${prefix}/etc/php-fpm.conf
...

Is it only me, but when I run ./configure without setting '--prefix' I get NONE as a prefix in php_fpm_sysconfdir, php_fpm_localstatedir and php_fpm_prefix, because

test "$prefix" = "NONE" && prefix=/usr/local

is done after

php_fpm_sysconfdir=`eval echo $sysconfdir`
PHP_SUBST_OLD(php_fpm_sysconfdir)
php_fpm_localstatedir=`eval echo $localstatedir`
PHP_SUBST_OLD(php_fpm_localstatedir)

[krakjoe]

I just merged another fix for this problem that was open longer, so closing this PR.