[clangd] Clarify and hide -index flag.
authorEric Liu <ioeric@google.com>
Thu, 13 Sep 2018 12:53:23 +0000 (12:53 +0000)
committerEric Liu <ioeric@google.com>
Thu, 13 Sep 2018 12:53:23 +0000 (12:53 +0000)
commit76b88d8e98401902189d78f710163edf7654ace6
treed5afbc31296fcfa7dc22075f816d5d6ffd04df88
parentff987ac6ea5a0d45d85e5da5161eb6945d27d421
[clangd] Clarify and hide -index flag.

Summary:
The wording implies global index support, which is confusing.
As most users shouldn't care about this flag, also make it hidden to avoid
further confusion.

Reviewers: sammccall, ilya-biryukov

Subscribers: MaskRay, jkorous, arphaman, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D51977

llvm-svn: 342134
clang-tools-extra/clangd/tool/ClangdMain.cpp