community/dar: upgrade to 2.7.11
from 2.7.10 to 2.7.11
- removed set_unexpected() invocation (not useful for years in libdar and incompatible with C++17)
- fixed generated dynamic libdar binary to include all its dependent libraries
- modified default block size for binary deltas, to be closer to what rsync uses (more details in man page).
- Improved compression exclusions
- adding support for ronna (10^27) and quetta (10^30) new SI prefixes, R and Q respectively
- fixing bug in infinint class met when extending underlying storage by zero bytes
- avoiding delta sig block size calculation when not necessary