message: fix(add): use the possessive in error message
diff: @@ -256,7 +256,7 @@ fn parse_dependencies(config: &Config, matches: &ArgMatches) -> CargoResult<Vec<
  )
  })
  .collect::<Vec<_>>();
  - anyhow::bail!("feature `{feature}` must be qualified by the dependency its being activated for, like {}", candidates.join(", "));
  + anyhow::bail!("feature `{feature}` must be qualified by the dependency it's being activated for, like {}", candidates.join(", "));
  }
  crates
  .first_mut()
  