Fix webredir by single quotes

[ZarTek-Creole]

need single quotes rather than double quotes because unreal will try to download.need single quotes rather than double quotes because unreal will try to download. Try error with "http://www.extra-cool.fr"

[25-05/23:43] Hi, an little bug in set { webredir { url "https://www.extra-cool.fr/"; } } return "set::webredir::url needs to be a valid URL" because contains an " - " in domain name. I don't know why he rejected on the condition: if (!strstr(cep->value, "://") || !strcmp(cep->value, "https://..."))
[25-05/23:49] UnrealIRCd-6.0.3.
[25-05/23:51] ZarTek, you may need single quotes there rather than double quotes, as unreal will try and download the page and use /that/ as the value if it's double i think
[25-05/23:54] * Joins: sAn (~sAn@Clk-EC2D4344.clients.your-server.de)
[25-05/23:55] alice: It seems very possible to me. I'll try. Thank you for your reply.
[25-05/23:56] <@valware> =]
[25-05/23:58] Yes, it works, very good deductions from you. Although such behavior was unexpected in this value.
[26-05/00:07] <@valware> indeed, on the wiki it has specified with double-quotes when in fact it expects single-quotes to work. so I edited it :D
[26-05/00:07] <@valware> https://www.unrealircd.org/docs/Set_block#set::webredir::url
[26-05/00:07] <@valware> =]

[syzop]

It seems this PR accidentally inherited the work on history.conf too, so I cannot apply it individually. Anyway, not important, on to the point...

Indeed you are right, it should have single quotes. Without single quotes it would cause a confusing error. So thanks for that! Done in 82063a4