HeadingColons conflicts with this repo's sentence-case heading
convention -- same shape as the existing Dashes disable, a house-style
conflict rather than a defect.
Percentages had zero true positives on the full docs/ tree: it only
ever fired on identifier uses of "percent" (cpu.percent, percent
resolver), never on an actual spelled-out percentage.
Plurals: rewrote the two real hits to always use the plural form
instead of the parenthetical (s) construction, per house style.
c7c221baeb