[Koha] Regexp in MARC modification action

[Mark Alexander]

Excerpts from Jonathan Druart's message of 2017-11-26 16:45:08 +0000:
> The "ig" in the modifiers input is a placeholder, not the default.
> It is displayed as it to let you know 'i' and/or 'g' are possible modifiers.
> Please try again explicitly specifying "ig" in the input box and it should
> work.

Thanks, that worked.  I was confused by the faint gray "ig" in the input box
because I thought that field wasn't editable.