Rework getting normalized dates adjacent to a given oneHEADdev

I originally wrote dateNormalize() because I expected to need it more,
but it turns out to only be needed for two cases of getting the days
before and after a given one. So rename to adjacentDay(), pass the +1
or -1 step and simplify a little.

In the process, fix a mistake in the winding backwards across a year
boundary, where I'd incremented the year instead of decrementing it.

Change-Id: I1bb0a8323fec7c1caffa7f20879f08d3526ba7ea
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

0 files changed, 0 insertions, 0 deletions