[clang] [clang-tools-extra] [lld] [llvm] [llvm] Add subcommand support for OptTable (PR #155026)

[via cfe-commits]

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@@ -730,7 +766,7 @@ void OptTable::printHelp(raw_ostream &OS, const char *Usage, const char *Title,
   bool ShowHidden = !(FlagsToExclude & HelpHidden);
   FlagsToExclude &= ~HelpHidden;
   return internalPrintHelp(
-      OS, Usage, Title, ShowHidden, ShowAllAliases,
+      OS, Usage, Title, {}, ShowHidden, ShowAllAliases,
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PiJoules wrote:

`/*Subcommand=*/{}`

https://github.com/llvm/llvm-project/pull/155026