[www-scripts] Clang Attribute Doc Update: ERROR

[root via www-scripts]

UPDATING LLVM SOURCES
HEAD is now at 9087209 [Driver] Add disabled-by-default -Wuse-ld-path for the deprecation warning for -fuse-ld=/abs/path
>From https://github.com/llvm/llvm-project
 * branch            master     -> FETCH_HEAD
   9087209..4f962b0  master     -> origin/master
First, rewinding head to replay your work on top of it...
Fast-forwarded master to 4f962b0d89b9733c8f051c1039b458c9632f6f88.
CMake Error at CMakeLists.txt:3 (cmake_minimum_required):
  CMake 3.13.4 or higher is required.  You are running version 3.7.1


-- Configuring incomplete, errors occurred!