Change timestamps to time_t not unsigned long

This patch does not change very many lines, but it does it in several different files. Per the Janitor page on the wiki it changes the unsigned long values returned by approxidate() to time_t.

Feedback and comments welcome.

David Bryson (3):
Changed timestamps to time_t instead of unsigned Changed timestamps to time_t instead of unsigned Changed timestamps to time_t in header files

 builtin-prune.c       |    2 +-
 builtin-reflog.c      |    8 ++++----
 builtin-show-branch.c |    4 ++--
 cache.h               |    2 +-
 date.c                |    2 +-
 parse-options.c       |    2 +-
 reflog-walk.c         |    2 +-
 refs.c                |    4 ++--
 refs.h                |    2 +-
 revision.h            |    4 ++--
 sha1_name.c           |    4 ++--
 11 files changed, 18 insertions(+), 18 deletions(-)