[llvm-driver] Add a newline at the end of the help message

[ArcaneNibble]

This was constantly messing with my terminal prompt 😹

[ArcaneNibble]

ping?

@lattner you are listed as the code owner for "Everything not covered by someone else"

[llvm-ci]

LLVM Buildbot has detected a new failure on builder clang-aarch64-quick running on linaro-clang-aarch64-quick while building llvm at step 5 "ninja check 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/65/builds/1989

Here is the relevant piece of the build log for the reference:

Step 5 (ninja check 1) failure: stage 1 checked (failure)
******************** TEST 'Clang Tools :: clang-doc/basic-project.test' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
Emiting docs in html format.
Mapping decls...
Collecting infos...
Reducing 5 infos...
Generating docs...
Generating assets for docs...

--
Command Output (stderr):
--
RUN: at line 1: rm -rf /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp && mkdir -p /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/docs /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/build
+ rm -rf /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp
+ mkdir -p /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/docs /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/build
RUN: at line 2: sed 's|$test_dir|/home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/clang-tools-extra/test/clang-doc|g' /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/clang-tools-extra/test/clang-doc/Inputs/basic-project/database_template.json > /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/build/compile_commands.json
+ sed 's|$test_dir|/home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/clang-tools-extra/test/clang-doc|g' /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/clang-tools-extra/test/clang-doc/Inputs/basic-project/database_template.json
RUN: at line 3: clang-doc --format=html --output=/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/docs --executor=all-TUs /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/build/compile_commands.json
+ clang-doc --format=html --output=/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/docs --executor=all-TUs /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/build/compile_commands.json
[1/3] Processing file /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/clang-tools-extra/test/clang-doc/Inputs/basic-project/src/Circle.cpp
[2/3] Processing file /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/clang-tools-extra/test/clang-doc/Inputs/basic-project/src/Rectangle.cpp
[3/3] Processing file /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/clang-tools-extra/test/clang-doc/Inputs/basic-project/src/Calculator.cpp
RUN: at line 4: FileCheck /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/clang-tools-extra/test/clang-doc/basic-project.test -input-file=/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/docs/index_json.js -check-prefix=JSON-INDEX
+ FileCheck /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/clang-tools-extra/test/clang-doc/basic-project.test -input-file=/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/docs/index_json.js -check-prefix=JSON-INDEX
RUN: at line 5: FileCheck /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/clang-tools-extra/test/clang-doc/basic-project.test -input-file=/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/docs/GlobalNamespace/Shape.html -check-prefix=HTML-SHAPE
+ FileCheck /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/clang-tools-extra/test/clang-doc/basic-project.test -input-file=/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/docs/GlobalNamespace/Shape.html -check-prefix=HTML-SHAPE
/home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/clang-tools-extra/test/clang-doc/basic-project.test:64:16: error: HTML-SHAPE: expected string not found in input
// HTML-SHAPE: <h3 id="{{([0-9A-F]{40})}}">area</h3>
               ^
/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/docs/GlobalNamespace/Shape.html:32:53: note: scanning from here
 <p>Defined at line 13 of file ./include/Shape.h</p>
                                                    ^
/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/docs/GlobalNamespace/Shape.html:47:41: note: possible intended match here
 <a href="#12896F9255F880ECD4A6482CCFA58B238FA2CC49">area</a>
                                        ^

Input file: /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/tools/clang/tools/extra/test/clang-doc/Output/basic-project.test.tmp/docs/GlobalNamespace/Shape.html
Check file: /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/clang-tools-extra/test/clang-doc/basic-project.test

-dump-input=help explains the following input dump.

Input was:
<<<<<<
            .
            .
            .
           27:  <div> 
...