String literals already collapsed by a formatter

The prose guard catches a new line-continued string literal, which is the cause. It cannot see one that a formatter already collapsed, which is the consequence - the literal is by then a single long line with runs of spaces baked through the middle of it, and the rendered message reads garbled (D184).

Three were found and fixed while working nearby. A grep for a run of six or more spaces inside a string literal finds six more, in orbistoun-gpu, orbistoun-shader, orbistoun-spirv and orbistoun-translate. It also finds two deliberate column alignments, so it is not a gate as written - the shape that works is the same grep plus a shrink-only ceiling file, exactly like the one the cause already has.

Left rather than fixed in passing because those files are actively being worked in another session, and a formatting sweep across them would collide.