[www-scripts] Clang Attribute Doc Update: ERROR

[root via www-scripts]

UPDATING LLVM SOURCES
HEAD is now at c8c3a41 [ARM] Ensure MVE_TwoOpPattern is used inside Predicate's
>From https://github.com/llvm/llvm-project
 * branch            master     -> FETCH_HEAD
   c8c3a41..95956c1  master     -> origin/master
First, rewinding head to replay your work on top of it...
Fast-forwarded master to 95956c1c9aae7ea21c2b2f7a21e0901d549bd190.
/opt/tools/clangCLdoc_update.sh: line 44: cmake: command not found