[www-scripts] Clang Attribute Doc Update: ERROR

[root via www-scripts]

UPDATING LLVM SOURCES
HEAD is now at 8605d31 [NFC][AMDGPU] Document kernel descriptor
>From https://github.com/llvm/llvm-project
 * branch            master     -> FETCH_HEAD
   8605d31..da886bf  master     -> origin/master
First, rewinding head to replay your work on top of it...
Fast-forwarded master to da886bf471e7a2b060c6cb07e2a4678598aee5b6.
/opt/tools/clangCLdoc_update.sh: line 44: cmake: command not found