Consider the following log entry:
14:42, October 27, 2020 Materialscientist talk contribs blocked Conorhater talk contribs with an expiration time of indefinite (account creation blocked)
Do note that above one is just a random example. I would like to know how I can change the text "with an expiration" to "with a expiration". Note that this too is just an example. I actually need to make the change in www.schoolwiki.in.