Short and single-letter names in application code become full words (tests
keep theirs). Wrapped calls, signatures and composite literals put one item
per line, and one-line function bodies are expanded. Exported names and
groups of constants get doc comments, and comments refer to the renamed
identifiers.
gci is configured with the sections standard, default and localmodule, and
goimports with the module path as its local prefix, so both formatters
agree.