[PATCH 0/3] Fix some issues found by Coverity

[John Keeping]

These fix the three issues found by Coverity that are definitely
incorrect.  There are seven more issues which mostly look like false
positives but I'm not sure if we should simply mark them as such or try
to improve the situation with modelling.

John Keeping (3):
  ui-log: handle parse_commit() errors
  cache: use size_t for string lengths
  cache: don't check for match with no key

 cache.c  | 9 +++++----
 ui-log.c | 4 +++-
 2 files changed, 8 insertions(+), 5 deletions(-)

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2.7.0.226.gfe986fe