barectf.c.j2: _ALIGN(): make it explicit that `_at_var` is a var. name
barectf.c.j2: _ALIGN(): make it explicit that `_at_var` is a var. name

Signed-off-by: Philippe Proulx <2096628897b40c93960fdd9e24c9c883a54d4fe9@gmail.com>

efficios/barectf,efficios/barectf