mesa: Use separate line for function return type

Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>

src/mesa/main/framebuffer.c

@@ -994,7 +994,8 @@ _mesa_geometric_nonvalidated_samples(const struct gl_framebuffer *buffer)
       buffer->DefaultGeometry.NumSamples;
 }
 
-bool _mesa_is_multisample_enabled(const struct gl_context *ctx)
+bool
+_mesa_is_multisample_enabled(const struct gl_context *ctx)
 {
    /* The sample count may not be validated by the driver, but when it is set,
     * we know that is in a valid range and no driver should ever validate a