[PATCH] Increase readability of HttpHdrRangeSpec::parseInit

Hi all,
  the attached patch stems from Coverity issue 434032 (dereference of
possibly null pointer).
Coverity's is a false positive, but it highlights the fact that the
code is poorly readable.

The attached patch tries to address the readability issue a bit. It's
a zero-sum patch, but it changes the formatting so I'm running the
standard submission process instead of committing straight away.

--
    /kinkie