[llvm] [Docs] Fix the description about %clang_cpp (PR #152842)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-testing-tools

Author: None (parabola94)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/152842.diff


1 Files Affected:

- (modified) llvm/docs/TestingGuide.rst (+1-1) 


``````````diff
diff --git a/llvm/docs/TestingGuide.rst b/llvm/docs/TestingGuide.rst
index b1819c795bab4..e6a27849f13be 100644
--- a/llvm/docs/TestingGuide.rst
+++ b/llvm/docs/TestingGuide.rst
@@ -834,7 +834,7 @@ Besides replacing LLVM tool names, the following substitutions are performed in
    Invokes the Clang driver.
 
 ``%clang_cpp``
-   Invokes the Clang driver for C++.
+   Invokes the Clang preprocessor.
 
 ``%clang_cl``
    Invokes the CL-compatible Clang driver.

``````````

</details>


https://github.com/llvm/llvm-project/pull/152842