[clang] doc: Clarify that ffile-prefix-map applies to fcoverage-prefix-map, too [NFC] (PR #117135)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: None (maflcko)

<details>
<summary>Changes</summary>



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Full diff: https://github.com/llvm/llvm-project/pull/117135.diff


1 Files Affected:

- (modified) clang/include/clang/Driver/Options.td (+1-1) 


``````````diff
diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index 5167c3c39e315a..01a3ad0943b4cc 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -4405,7 +4405,7 @@ def fcoverage_prefix_map_EQ
     HelpText<"remap file source paths <old> to <new> in coverage mapping. If there are multiple options, prefix replacement is applied in reverse order starting from the last one">;
 def ffile_prefix_map_EQ
   : Joined<["-"], "ffile-prefix-map=">, Group<f_Group>,
-    HelpText<"remap file source paths in debug info, predefined preprocessor "
+    HelpText<"remap file source paths in debug info, coverage mapping, predefined preprocessor "
              "macros and __builtin_FILE(). Implies -ffile-reproducible.">;
 def fmacro_prefix_map_EQ
   : Joined<["-"], "fmacro-prefix-map=">, Group<f_Group>,

``````````

</details>


https://github.com/llvm/llvm-project/pull/117135