vulkaninfo: Fix lack of display throwing on linux
vulkaninfo: Fix lack of display throwing on linux

During the Error Handling refactor, this line was accidentally made throwing when before
it simply reported an issue and kept going.

Change-Id: Ia3b33749ee05037a5df22398ba8b628811fad29b

KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools