[gtk+] vulkan: fix compilation

[Tim-Philipp Müller <tpm src gnome org>]

commit 37b99ed67179162276196b8e0c3eac8cfbdede00
Author: Tim-Philipp Müller <tim centricular com>
Date:   Sat Mar 18 12:17:44 2017 +0000

    vulkan: fix compilation

 gsk/gskrenderer.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gsk/gskrenderer.c b/gsk/gskrenderer.c
index 3c93e77..c2c2bf6 100644
--- a/gsk/gskrenderer.c
+++ b/gsk/gskrenderer.c
@@ -771,7 +771,7 @@ get_renderer_for_name (const char *renderer_name)
     return GSK_TYPE_GL_RENDERER;
 #ifdef GDK_RENDERING_VULKAN
   else if (g_ascii_strcasecmp (renderer_name, "vulkan") == 0)
-    return = GSK_TYPE_VULKAN_RENDERER;
+    return GSK_TYPE_VULKAN_RENDERER;
 #endif
   else if (g_ascii_strcasecmp (renderer_name, "help") == 0)
     {