/home/dan/sup/bin/sup-sync-back-maildir:97:in `initialize': tried to create Proc object without a block (ArgumentError)
from /home/dan/sup/bin/sup-sync-back-maildir:97:in `new'
from /home/dan/sup/bin/sup-sync-back-maildir:97:in `block in <top (required)>'
from /home/dan/sup/bin/sup-sync-back-maildir:91:in `each'
from /home/dan/sup/bin/sup-sync-back-maildir:91:in `<top (required)>'
from /home/dan/sup/vendor/bundle/ruby/3.0.0/bin/sup-sync-back-maildir:23:in `load'
from /home/dan/sup/vendor/bundle/ruby/3.0.0/bin/sup-sync-back-maildir:23:in `<top (required)>'
from /usr/share/gems/gems/bundler-2.2.22/lib/bundler/cli/exec.rb:63:in `load'
from /usr/share/gems/gems/bundler-2.2.22/lib/bundler/cli/exec.rb:63:in `kernel_load'
from /usr/share/gems/gems/bundler-2.2.22/lib/bundler/cli/exec.rb:28:in `run'
from /usr/share/gems/gems/bundler-2.2.22/lib/bundler/cli.rb:474:in `exec'
from /usr/share/gems/gems/bundler-2.2.22/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
from /usr/share/gems/gems/bundler-2.2.22/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
from /usr/share/gems/gems/bundler-2.2.22/lib/bundler/vendor/thor/lib/thor.rb:392:in `dispatch'
from /usr/share/gems/gems/bundler-2.2.22/lib/bundler/cli.rb:30:in `dispatch'
from /usr/share/gems/gems/bundler-2.2.22/lib/bundler/vendor/thor/lib/thor/base.rb:485:in `start'
from /usr/share/gems/gems/bundler-2.2.22/lib/bundler/cli.rb:24:in `start'
from /usr/share/gems/gems/bundler-2.2.22/libexec/bundle:49:in `block in <top (required)>'
from /usr/share/gems/gems/bundler-2.2.22/lib/bundler/friendly_errors.rb:128:in `with_friendly_errors'
from /usr/share/gems/gems/bundler-2.2.22/libexec/bundle:37:in `<top (required)>'
from /usr/bin/bundle:23:in `load'
from /usr/bin/bundle:23:in `<main>'