[www-scripts] Clang Attribute Doc Update: ERROR

[LLVM via www-scripts]

UPDATING LLVM SOURCES
>From https://github.com/llvm/llvm-project
 * branch            master     -> FETCH_HEAD
Current branch master is up to date.
-- Could NOT find Z3: Found unsuitable version "0.0.0", but required is at least "4.7.1" (found Z3_LIBRARIES-NOTFOUND)
-- Native target architecture is X86
-- Threads enabled.
-- Doxygen disabled.
-- Go bindings disabled.
-- Could NOT find OCaml (missing:  OCAMLFIND OCAML_VERSION OCAML_STDLIB_PATH) 
-- Could NOT find OCaml (missing:  OCAMLFIND OCAML_VERSION OCAML_STDLIB_PATH) 
-- OCaml bindings disabled.
-- LLVM host triple: x86_64-unknown-linux-gnu
-- LLVM default target triple: x86_64-unknown-linux-gnu
-- Building with -fPIC
-- Constructing LLVMBuild project information
-- Linker detection: GNU ld
-- Targeting AArch64
-- Targeting AMDGPU
-- Targeting ARM
-- Targeting BPF
-- Targeting Hexagon
-- Targeting Lanai
-- Targeting Mips
-- Targeting MSP430
-- Targeting NVPTX
-- Targeting PowerPC
-- Targeting RISCV
-- Targeting Sparc
-- Targeting SystemZ
-- Targeting WebAssembly
-- Targeting X86
-- Targeting XCore
-- Clang version: 10.0.0
-- Sphinx enabled.
-- Sphinx enabled.
-- Failed to find LLVM FileCheck
-- Version: 0.0.0
-- Performing Test HAVE_GNU_POSIX_REGEX -- failed to compile
-- Performing Test HAVE_POSIX_REGEX -- success
-- Performing Test HAVE_STEADY_CLOCK -- success
-- Configuring done
-- Generating done
-- Build files have been written to: /opt/clang_commandline_docs/build/llvm
BUILDING LLVM CLANG
[  0%] Built target obj.clang-tblgen
[  0%] Built target LLVMDemangle
[100%] Built target LLVMSupport
[100%] Built target LLVMTableGen
[100%] Built target clang-tblgen
Included from /opt/www-src/llvm-project/clang/include/clang/Driver/ClangOptionDocs.td:35:
/opt/www-src/llvm-project/clang/include/clang/Driver/Options.td:14:9: error: Could not find include file 'llvm/Option/OptParser.td'
include "llvm/Option/OptParser.td"
        ^
Included from /opt/www-src/llvm-project/clang/include/clang/Driver/ClangOptionDocs.td:35:
/opt/www-src/llvm-project/clang/include/clang/Driver/Options.td:14:9: error: Unexpected input at top level
include "llvm/Option/OptParser.td"
        ^