[llvm] [llvm-lit] Resolve env subcommand required error (PR #98414)

[James Henderson via llvm-commits]

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@@ -1 +1,30 @@
-# RUN: env
+# Check Default Environment
+# RUN: env | FileCheck -check-prefix=CHECK-2-EMPTY %s
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jh7370 wrote:

Please don't use any check prefix ending in `EMPTY`, because FileCheck has an `EMPTY` suffix for checking if a line is completely empty.

https://github.com/llvm/llvm-project/pull/98414