[syslog-ng] [PATCH 0/2] More packaging tweaks

Two patches will follow, one to disable the "Compile Date" in syslog-ng --version's output, and another to force the tar format used for make dist to ustar. The latter is due to the included libmongo-client library having some long filenames, which hit the 99 char limit when distributed with syslog-ng. Increasing the limit to 255 bytes makes the problem disappear.