build: Fix error message with -Denable-vala without vala found (!25) · Merge requests · GNOME / totem

Merged Mart Raudsepp requested to merge mraudsepp/totem:enable-vala-typo into master Dec 15, 2018

Fixes ERROR: Unknown variable "vala_options" to ERROR: Problem encountered: you need vala >= 0.14.1 installed to use vala plugins by correcting a typo.