Syntax highlighting bugged using here doc

[gertjanmaas]

When using here doc syntax and the end of the here doc has whitespace before it, the syntax highlighting is wrong.

Whitespaces before EOF:

No whitespace before EOF:

[alexlouden]

Hey @gertjanmaas thanks for reporting this! I think it should be a pretty quick fix - it looks like the end regex is ^\1$ and just needs to be ^\s*\1$ to handle preceding whitespace. I'll make the change when I can, hopefully one evening this week or on the weekend.