hook: update vim help tags

[3ed]

IMHO this two should be one of the hooks.

vim74 folder:

[Trigger]
Type = File
Operation = Install
Operation = Upgrade
Operation = Remove
Target = usr/share/vim/vim74/doc/*

[Action]
When = PostTransaction
Exec = /usr/bin/vim --noplugins -u NONE -U NONE --cmd ":helptags /usr/share/vim/vim74/doc" --cmd ":q

vimfiles folder:

[Trigger]
Type = File
Operation = Install
Operation = Upgrade
Operation = Remove
Target = usr/share/vim/vimfiles/doc/*

[Action]
When = PostTransaction
Exec = /usr/bin/vim --noplugins -u NONE -U NONE --cmd ":helptags /usr/share/vim/vimfiles/doc" --cmd ":q

PS. This samples are not tested