Merge bitcoin/bitcoin#31118: doc: replace -? with -h and -help

33a28e2 Change default help arg to `-help` and mention `-h` and `-?` as alternatives (Lőrinc)
f0130ab doc: replace `-?` with `-h` for bench_bitcoin help (Lőrinc)

Pull request description:

  The question mark is interpreted as a wildcard for any single character in Zsh (see https://www.techrepublic.com/article/globbing-wildcard-characters-with-zsh), so `bench_bitcoin -?` will not show the help message on systems using Zsh, such as macOS.

  Since `-h` provides equivalent help functionality (as defined in https://github.com/bitcoin/bitcoin/blob/master/src/common/args.cpp#L684-L693), the `benchmarking.md` documentation has been updated to ensure compatibility with macOS.

  ----

  ### -?
  > % cmake -B build -DBUILD_BENCH=ON && cmake --build build && build/src/bench/bench_bitcoin -?
  zsh: no matches found: -?

  ### -h
  > % cmake -B build -DBUILD_BENCH=ON && cmake --build build && build/src/bench/bench_bitcoin -h
  Usage:  bench_bitcoin [options]
  Options:
  ...

  ----

  Based on the comments the args help default was also changed to `-help`, mentioning `-h` and `-?` (instead of `-?` being the default)

ACKs for top commit:
  edilmedeiros:
    tACK 33a28e2
  maflcko:
    lgtm ACK 33a28e2
  achow101:
    ACK 33a28e2
  rkrux:
    tACK bitcoin/bitcoin@33a28e2
  laanwj:
    Code review ACK 33a28e2

Tree-SHA512: 8c6e27488462be9ba9186b34abe6249c1d93026b3963acc0f42c75496f39407563766ae518cf1839156039cc0047e29d91f70d191cfb97e0fbde85665e88c71e

doc/benchmarking.md

@@ -40,7 +40,7 @@ The output will look similar to:
 Help
 ---------------------
 
-    build/src/bench/bench_bitcoin -?
+    build/src/bench/bench_bitcoin -h
 
 To print the various options, like listing the benchmarks without running them
 or using a regex filter to only run certain benchmarks.

src/common/args.cpp

@@ -688,8 +688,8 @@ bool HelpRequested(const ArgsManager& args)
 
 void SetupHelpOptions(ArgsManager& args)
 {
-    args.AddArg("-?", "Print this help message and exit", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
-    args.AddHiddenArgs({"-h", "-help"});
+    args.AddArg("-help", "Print this help message and exit (also -h or -?)", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
+    args.AddHiddenArgs({"-h", "-?"});
 }
 
 static const int screenWidth = 79;

test/lint/check-doc.py

@@ -23,7 +23,7 @@
 CMD_GREP_WALLET_HIDDEN_ARGS = r"git grep --function-context 'void DummyWalletInit::AddWalletOptions' -- {}".format(CMD_ROOT_DIR)
 CMD_GREP_DOCS = r"git grep --perl-regexp '{}' {}".format(REGEX_DOC, CMD_ROOT_DIR)
 # list unsupported, deprecated and duplicate args as they need no documentation
-SET_DOC_OPTIONAL = set(['-h', '-help', '-dbcrashratio', '-forcecompactdb'])
+SET_DOC_OPTIONAL = set(['-h', '-?', '-dbcrashratio', '-forcecompactdb'])
 
 
 def lint_missing_argument_documentation():