meson: gl: fix incorrect error string
authorMatthew Waters <matthew@centricular.com>
Tue, 18 Oct 2016 03:10:32 +0000 (14:10 +1100)
committerMatthew Waters <matthew@centricular.com>
Tue, 18 Oct 2016 03:10:32 +0000 (14:10 +1100)
commitb85fa6f2dd31f35abf60f0db13f288665a7c3b08
treedc0880455f5b3243aa5fe7822e057663f6c5db68
parent950a7945e4c57c3bdac3fd2f85c48135488d672c
meson: gl: fix incorrect error string

Use the winsys variable for an incorrect winsys provided
gst-libs/gst/gl/meson.build