message: manifest reference: correct statement: codegen-units=x is not ignored if lto=true.
  Also fix typo along the way.
diff: @@ -189,7 +189,7 @@ license-file = "..."
  # Appveyor, CircleCI, GitLab, and TravisCI.
  # - Available badges pertaining to code test coverage are Codecov and
  # Coveralls.
  -# - There are also maintenance-related badges basesed on isitmaintained.com
  +# - There are also maintenance-related badges based on isitmaintained.com
  # which state the issue resolution time, percent of open issues, and future
  # maintenance intentions.
  #
  @@ -301,7 +301,7 @@ debug-assertions = true # controls whether debug assertions are enabled
  # (e.g. debug_assert!() and arithmetic overflow checks)
  codegen-units = 1 # if > 1 enables parallel code generation which improves
  # compile times, but prevents some optimizations.
  - # Passes `-C codegen-units`. Ignored when `lto = true`.
  + # Passes `-C codegen-units`.
  panic = 'unwind' # panic strategy (`-C panic=...`), can also be 'abort'
  incremental = true # whether or not incremental compilation is enabled
  overflow-checks = true # use overflow checks for integer arithmetic.
  