Log Message:
dateutils: updated to 0.4.10

v0.4.10
do not resort to daisy sequences when incomplete dates are present
upon end-of-buffer finalise the last line
let --empty-mode|-E and --sed-mode|-S play nicely together
adapt CLI behaviour of strptime(1) to the other tools

v0.4.9
allow to specify epochs in nanoseconds, %s%N
fix nanosecond arithmetic
make cross-compilations easier
mention default timezone

v0.4.8
be symmetric about differences, A - B := -(B - A) for A < B
fix security issue when reading TZMAP_DIR from environment
fix printing of negative 0 (-0)
fix issue with tzdata transitions in files with leap second
adjustments that are now cut off at expiration time

v0.4.7
strptime mimics return code behaviour of dateconv
use unsigned arithmetic for leap second conversion
fix up ymds before adding days or business days
drain prchunk if filled with many small lines