feat(mech-dump): Add completion to mech-dump

    Part of WWW-Mechanize Perl distribution
    https://github.com/libwww-perl/WWW-Mechanize
    WWW::Mechanize, or Mech for short, is a Perl module for stateful
    programmatic web browsing, used for automating interaction with websites.

    GitHub Issue #474

Author: mikkoi

completions/mech-dump

@@ -0,0 +1,11 @@
+_comp_cmd_mech_dump()
+{
+    local cur
+    cur=${COMP_WORDS[COMP_CWORD]}
+
+    # shellcheck disable=SC2207,SC2016
+    COMPREPLY=($(compgen -W '$(mech-dump --completions)' -- "$cur"))
+} &&
+    complete -F _comp_cmd_mech_dump mech-dump
+
+# ex: filetype=sh