I recently added a space to the output because putting the texture (icon) right in front of the text without one looked slightly odd. Now I've come across this ingame:

Clearly, not everyone is using a Sink that will even print the texture, and there's other options such as Blizzard Error Frame too, which I'm not sure can display it. Therefore, I should either revert the cosmetic change (sigh), or find a way to only add the spacer where necessary.