[llvm] [DirectX] Error handling improve in root signature metadata Parser (PR #149232)

[Chris B via llvm-commits]

================
@@ -3,7 +3,7 @@
 target triple = "dxil-unknown-shadermodel6.0-compute"
 
 
-; CHECK: error:  Invalid Root Signature Element: Invalid 
+; CHECK: error:  Invalid Root Signature Element:Invalid 
----------------
llvm-beanz wrote:

Okay, but I think @inbelic's point is that this looks like the wrong thing to have done. We should consistently add a space here.

https://github.com/llvm/llvm-project/pull/149232