llvm11: update to 11.1.0.

[unspecd]

Also:

• Clean up template.
• Update srcpkgs/llvm11/update due to xbps-src update-check: curl does not decompress responses #29429.

Fixes: #28609.
Fixes: #17935.

General

• This is a new package and it conforms to the quality requirements

Have the results of the proposed changes been tested?

• I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me
• I generally don't use the affected packages but briefly tested this PR

Does it build and run successfully?

• I built this PR locally for my native architecture, x86_64-musl
• I built this PR locally for these architectures (TODO):
  • aarch64-musl
  • armv7l
  • armv6l-musl
  • ppc-musl
  • ppc
  • ppcle-musl
  • ppcle
  • ppc64-musl
  • ppc64
  • ppc64le-musl
  • ppc64le

Currently, the documentation fails to build:

[2824/5792] Generating man Sphinx documentation for clang-tools into "/builddir/llvm-project-11.1.0.src/llvm/build/tools/clang/tools/extra/docs/man"
FAILED: tools/clang/tools/extra/docs/CMakeFiles/docs-clang-tools-man 
cd /builddir/llvm-project-11.1.0.src/llvm/build/tools/clang/tools/extra/docs && /usr/bin/sphinx-build -b man -d /builddir/llvm-project-11.1.0.src/llvm/build/tools/clang/tools/extra/docs/_doctrees-clang-tools-man -q -t builder-man -W /builddir/llvm-project-11.1.0.src/clang-tools-extra/docs /builddir/llvm-project-11.1.0.src/llvm/build/tools/clang/tools/extra/docs/man

Warning, treated as error:
/builddir/llvm-project-11.1.0.src/clang-tools-extra/docs/clang-tidy/Integrations.rst::"table cell spanning" not supported

List of packages to rebuild:

H = hostmakedepends, M = makedepends, C = checkdepends:

• 0ad: H=clang
• afl: H=clang,llvm
• ardour: H=clang
• bat: H=clang,llvm
• bcc: M=clang,clang-tools-extra,lld-devel,llvm
• beignet: H=clang,llvm
• blender: M=llvm
• bpftrace: M=clang,clang-tools-extra,llvm
• ccls: H=clang-tools-extra M=clang-tools-extra,llvm
• chromium: H=clang
• clazy: M=clang,llvm D=clang
• codelite: H=clang M=lldb-devel
• deadbeef: H=clang
• discord-ptb: D=libcxx
• discord: D=libcxx
• electron10: H=clang
• electron9: H=clang
• faust: H=llvm M=llvm-libunwind-devel
• firefox-esr: H=llvm,clang
• firefox: H=llvm,clang
• ghdl: M=llvm11
• gnome-builder: H=llvm M=clang
• godot: H=clang
• hedgewars: H=clang
• hfsprogs: H=clang
• include-what-you-use: M=clang,clang-tools-extra,llvm
• ispc: H=clang,clang-tools-extra,llvm
• juCi++: M=clang
• kdevelop: H=llvm M=clang
• ldc: H=llvm11
• mesa: H=llvm clang M=clang,libclc D=libclc
• meson: C=clang,llvm
• mozjs78: H=llvm,clang
• multitail: H=clang-analyzer
• pijul: H=clang
• qt5-doc: H=clang
• qt5: H=clang
• qtcreator: H,M=clang,llvm
• qv4l2: H=clang
• rdedup: H=clang
• rtags: H=clang M=llvm
• rust: H=llvm11 M=llvm11
• shiboken2: M=clang D=clang
• thunderbird: H=llvm,clang
• zig: M=clang,llvm11,lld-devel

[ci skip]

[q66]

we're not doing any more llvm11 updates, it will be dropped with llvm12

[unspecd]

Okay.

[rempas]

we're not doing any more llvm11 updates, it will be dropped with llvm12

And what are we waiting for LLVM12? Is anyone working on it?

[unspecd]

I'm not working on it.