Attaching log files.
Logs compressed into bz2.
Each archive expands to ~13MB text file.
log file name | optipng parameters
-------------------|---------------------
FD_opti | -o7 -clobber -fix -force
FD_opti_fix | -o7 -clobber -fix
FD_opti_no_opt | -o7 -clobber
FD_opti_nofixforce | -o7 -np -clobber
see optipng man page for details of parameters. |