Strip leading `-` from session name

[Caleb Heuer]

My dotfiles repo lives in ~/.dotfiles, so the resulting gitdir session name is -dotfiles. This wreaks havoc with kak-lsp and kakoune itself, the former thinking it is a command-line flag, and the latter thinking it's a switch to the command you pass %val{session} to.

shell stderr: <<<
error: Found argument '-o' which wasn't expected, or isn't valid in this context

USAGE:
    kak-lsp --daemonize --kakoune --session <SESSION>

For more information try --help
>>>

Suggested fix

Strip any non-alphanumeric characters from the front of the session name.

To reproduce

• Create a Git repo inside a hidden folder (e.g. ".test")
• Pass KKS_USE_GITDIR_SESSIONS
• Open kakoune and try to enable kak-lsp with evaluate-commands %sh{ kak-lsp --kakoune -s $kak_session }
• Check *debug* and you will see kak-lsp complain about an unknown command line flag.

[Gadzhi Kharkharov]

Good catch! Thanks for using kks :)
This should be fixed in the latest release. I've also just pushed an updated AUR package.

[Caleb Heuer]

Confirmed fixed! Thanks for the quick patch. :)