=== sdrrmerge ===

Merges products into single time-sorted sdrr message file
{{{
   Usage: sdrrmerge sdrr_message_file[s]
     Merges SDRR message files into single time-sorted file and dumps to stdout
}}}
example:
{{{
     sdrrmerge main.out ifa.out bcn.out > merge.out
}}}
DIL notes:
{{{
   since sdrrmerge may not preserve order of same-time msgs:
     - grep msgType=\"CS merge.out > merge_cs.out
     - edit merge_cs.out: delete anything prior to sector dump, and anything after "live/TI" starttime (ex: 13:00:00)
     - import the edited merge_cs.out into sector.out after the dump
     - edit merge.out: remove all CSes prior to "live/TI" starttime
}}}