[clang] [clang][doc] Improve error handling for `LibTooling` example code avoiding core dump (PR #98129)

[Rajveer Singh Bharadwaj via cfe-commits]

https://github.com/Rajveer100 created https://github.com/llvm/llvm-project/pull/98129

Resolves #97983

>From e20e592845a1de4282e7492bec2e2b34ac3b96cf Mon Sep 17 00:00:00 2001
From: Rajveer <rajveer.developer at icloud.com>
Date: Tue, 9 Jul 2024 13:58:20 +0530
Subject: [PATCH] [clang][doc] Improve error handling for `LibTooling` example
 code avoiding core dump

Resolves #97983
---
 clang/docs/LibTooling.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/clang/docs/LibTooling.rst b/clang/docs/LibTooling.rst
index 87d84321ab283..c6687fb9642f9 100644
--- a/clang/docs/LibTooling.rst
+++ b/clang/docs/LibTooling.rst
@@ -75,7 +75,7 @@ and automatic location of the compilation database using source files paths.
     auto ExpectedParser = CommonOptionsParser::create(argc, argv, MyToolCategory);
     if (!ExpectedParser) {
       // Fail gracefully for unsupported options.
-      llvm::errs() << ExpectedParser.takeError();
+      llvm::errs() << toString(ExpectedParser.takeError());
       return 1;
     }
     CommonOptionsParser& OptionsParser = ExpectedParser.get();
@@ -142,7 +142,7 @@ version of this example tool is also checked into the clang tree at
   int main(int argc, const char **argv) {
     auto ExpectedParser = CommonOptionsParser::create(argc, argv, MyToolCategory);
     if (!ExpectedParser) {
-      llvm::errs() << ExpectedParser.takeError();
+      llvm::errs() << toString(ExpectedParser.takeError());
       return 1;
     }
     CommonOptionsParser& OptionsParser = ExpectedParser.get();