[www-scripts] Clang Attribute Doc Update: ERROR

[root via www-scripts]

UPDATING LLVM SOURCES
HEAD is now at 914f6c4 [StaticAnalyzer] Support struct annotations in FuchsiaHandleChecker
>From https://github.com/llvm/llvm-project
 * branch            master     -> FETCH_HEAD
   914f6c4..1756d67  master     -> origin/master
First, rewinding head to replay your work on top of it...
Fast-forwarded master to 1756d67934bb5fe3b12bdb5fa55d61f61bd70bc5.
/opt/tools/clangCLdoc_update.sh: line 44: cmake: command not found