[llvm] [llvm][mustache] Simplify debug logging (PR #159193)

[Paul Kirth via llvm-commits]

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@@ -545,7 +571,7 @@ class AddIndentationStringStream : public MustacheOutputStream {
     Indent.resize(Indentation, ' ');
 
     for (char C : Data) {
-      LLVM_DEBUG(dbgs() << "IndentationStream: NeedsIndent=" << NeedsIndent
+      LLVM_DEBUG(dbgs() << "[IndentationStream] NeedsIndent=" << NeedsIndent
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ilovepi wrote:

I think this one is the odd one out. good catch. let me shore up the rest.

https://github.com/llvm/llvm-project/pull/159193