fixup! update simplified-template-names.s regenerate instructions

Author: Michael137

llvm/test/tools/llvm-dwarfdump/X86/simplified-template-names.s

@@ -2,7 +2,7 @@
 # RUN:   | llvm-dwarfdump --verify - | FileCheck %s
 
 # Checking the LLVM side of cross-project-tests/debuginfo-tests/clang_llvm_roundtrip/simplified_template_names.cpp
-# Compile that file with `-g -Xclang -gsimple-template-names=mangled -Xclang -debug-forward-template-params -S -std=c++20`
+# Compile that file with `-g -Xclang -gsimple-template-names=mangled -Xclang -debug-forward-template-params -S -std=c++20 -target x86_64-linux`
 # to (re)generate this assembly file - while it might be slightly overkill in
 # some ways, it seems small/simple enough to keep this as an exact match for
 # that end to end test.