Having the build time in the version string is useful when building from
a dirty worktree and deploying to targets as a quick way to identify the
binary has been deployed successfully.
Before this change the version string is reported as
libcamera v0.0.0+1692-aaff196a-dirty
While with this change the version string is reported as
libcamera v0.0.0+1692-aaff196a-dirty (2020-08-05T22:42:18+02:00)
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>