Following this answer I've set up a simple file /etc/portage/env/echo.conf:post_pkg_postinst(){    echo updating $P to $PV}with the linesys-apps/util-linux echo.confin /etc/portage/package.envNow when emerge tries to update util-linux I get the following error:!!! Problem in 'sys-apps/util-linux' dependencies.!!! /etc/portage/env/echo.conf, line 2: Invalid token '(' (not '=') portage.exception                                                                ... done!/etc/portage/env/echo.conf, line 2: Invalid token '(' (not '=')with line 2 being the function declaration post_pkg_postinst().My portage setup:sys-apps/portage-2.2.20::gentoo was built with the following:USE=(ipc) -build -doc -epydoc (-selinux) -xattr ABI_X86=64 LINGUAS=-ru PYTHON_TARGETS=python2_7 python3_3 (-pypy) -python3_4
Using package.env for phase hooks
gentoo;emerge