fix: avoid eval "= directly in builtin registers picker (#2347)

When "= contains expression not ought to be run in current context, the
`getreg('=')` raises error.

For example `:put =foo` (where `foo` is undefined) then open registers
picker it fails. Also #2228.

Now specify second arg to `getreg` to get register expr (instead of
"evaluated" result) as content, like what `:registers` command displays.

This has behavior change, if user still want to see/paste the
evaluated result, a customized action will be needed.

0 files changed, 0 insertions, 0 deletions