How to left align site title if set to appear on the left?

Hi,

I have a question that is probably so simple it’s embarrassing to ask, but it’s not in any post I’ve seen so far.

I have a site title which is two words, let’s say “Some Voyage” so just text, not a logo.
When I set the header for “logo/title on the left” I do indeed end up with the title on the left, the two words spread over two lines (I presume it does that because the space is too short for two words next to each other, but that happens to match my needs).

But, the words in that title on the left are CENTRE justified. Duh.

Where can I change that to LEFT justified? From a design perspective I would see this as a bug – centre justification would be good if it was in the middle, but on the left I would have expected left justification by default. Fonts are set to Open Sans, size 15 for the site, just in case this matters. I have set up a child theme so changes can persist through any upgrades.

Thanks in advance for any help.