mod_admin_shell: Allow matching on host or bare JID in c2s:show Only supporting exact match on full JID isn't helpful if you want to list sessions per host or user. Backport of 430333198e4c Fixes #1857

module:log("error", "mod_pep_plus has been renamed to mod_pep, please update your config file. Auto-loading mod_pep...");
module:depends("pep");