The EXIT STATUS block used a single space before the ">0" row's
description, which falls below the doc pipeline's 2-space column
threshold and silently degrades the rendered site page from a table
(like rm's) to a plain indented block. Pad it to match. Also strip
trailing whitespace from two DESCRIPTION lines and add --wraps='mv'
so fish inherits real mv's completions, matching the bash/top wrapper
convention.