elan-lean: follow RFC16 and update maintainer email

[megrxu]

For #3587 (comment).

[Zenvie]

elan-lean W: ELF file ('usr/bin/elan') lacks GNU_PROPERTY_X86_FEATURE_1_SHSTK.
elan-lean E: Dependency bzip2 detected and not included (libraries ['usr/lib/libbz2.so.1.0'] needed in files ['usr/bin/elan'])
elan-lean W: Dependency glibc detected and implicitly satisfied (libraries ['usr/lib/ld-linux-x86-64.so.2', 'usr/lib/libm.so.6', 'usr/lib/libc.so.6'] needed in files ['usr/bin/elan'])
elan-lean W: Dependency gcc-libs detected and implicitly satisfied (libraries ['usr/lib/libgcc_s.so.1'] needed in files ['usr/bin/elan'])
elan-lean W: Dependency included, but may not be needed ('xz')

[megrxu]

depends 问题好解决。但是 GNU_PROPERTY_X86_FEATURE_1_SHSTK 似乎 rust 项目不太好加 -fcf-protection?
好像只有 nightly 目前支持 -Z branch-protection。
我 namcap 了 paru 的包，看起来也是这样的：

paru W: ELF file ('usr/bin/paru') lacks GNU_PROPERTY_X86_FEATURE_1_SHSTK.

[Zenvie]

Compiling elan-utils v1.11.0 (/build/elan-lean/src/elan-3.1.1/src/elan-utils)
warning: using `.clone()` on a double reference, which returns `&dyn for<'a> Fn(notifications::Notification<'a>)` instead of cloning the inner type
   --> src/elan-dist/src/dist.rs:209:32
    |
209 |         download.notify_handler.clone(),
    |                                ^^^^^^^^
    |
    = note: `#[warn(suspicious_double_ref_op)]` on by default

warning: `elan-dist` (lib) generated 1 warning

[megrxu]

这个似乎是上游报的 warning，需要我们处理吗？

[lilydjwg]

这个不用管的啦。