Lint cleanup from Jim Roseborough.

Change-Id: I53f4e0d020602443b397387b8c5908f25649403d
Lint cleanup from William Rucklidge.

Change-Id: If545f114c1a2b07edd660a3c71ecfc16ffa25e43
Merge branch 'master' of https://ceres-solver.googlesource.com/ceres-solver

# By Sameer Agarwal
# Via Sameer Agarwal
* 'master' of https://ceres-solver.googlesource.com/ceres-solver:
  Lint cleanup from William Rucklidge.
  Lint cleanup from Jim Roseborough.