[www-scripts] Clang Attribute Doc Update: ERROR

[root via www-scripts]

UPDATING LLVM SOURCES
HEAD is now at 838a28e [RISCV] Scheduler description for the Rocket core
>From https://github.com/llvm/llvm-project
 * branch            master     -> FETCH_HEAD
   838a28e..c467faf  master     -> origin/master
Auto packing the repository for optimum performance. You may also
run "git gc" manually. See "git help gc" for more information.
Cannot rebase: Your index contains uncommitted changes.
Please commit or stash them.