[gtk/win32-enable-werror] win32: Fix meson names for defines

[Benjamin Otte <otte src gnome org>]

commit e197752afe9f64ce4207ad74c0df6480b7524024
Author: Benjamin Otte <otte redhat com>
Date:   Tue May 21 07:46:42 2019 +0200

    win32: Fix meson names for defines
    
    Those have been wrong forever, but nobody cares because they get to the
    values we want anyway.

 .gitlab-ci/test-msys2.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/.gitlab-ci/test-msys2.sh b/.gitlab-ci/test-msys2.sh
index c3a7e67263..05624265f4 100644
--- a/.gitlab-ci/test-msys2.sh
+++ b/.gitlab-ci/test-msys2.sh
@@ -42,9 +42,9 @@ ccache --zero-stats
 ccache --show-stats
 export CCACHE_DISABLE=true
 meson \
-    -Denable-x11-backend=false \
-    -Denable-wayland-backend=false \
-    -Denable-win32-backend=true \
+    -Dx11-backend=false \
+    -Dwayland-backend=false \
+    -Dwin32-backend=true \
     -Dvulkan=no \
     --werror \
     _build