Strange message on update: tar: install/update.sh: Not found in archive

Just a quick question to ask if this is “normal”: Every time I run an update, I see the following message:

Connecting to repository http://download.ff.avast.com/mac/vpsmac
Downloading vpsmac.lat...
Package vpsmac is up to date.
tar: install/update.sh: Not found in archive
tar: Error exit delayed from previous errors.
+ RAW='/Library/Application Support/Avast/files/Setup/filedir/vpsmac.raw'
+ '[' '!' -f '/Library/Application Support/Avast/files/Setup/filedir/vpsmac.raw' ']'
+ VERSION=13121200
+ '[' -z 13121200 ']'
+ FILES_DIR='/Library/Application Support/Avast/files'
+ '[' -d '/Library/Application Support/Avast/files/defs/13121200' ']'
+ echo 'Version already installed?'
Version already installed?
+ exit 1
Connecting to repository http://download.ff.avast.com/mac/AAFM
Downloading AAFM.lat...
Package AAFM is up to date.
install/update.sh
No program update available.

Now, this might be totally harmless but I’m a bit confused by the tar error and some command exiting with a non-0 status. I couldn’t find anything meaningful on Google so I was hoping anyone here has a clue what’s going on.

Same issue seen here for the last approx. 2 or 3 months, on every manual Vdefs update when the log was pulled down. Not quite every time, but probably 90% observed log, and 100% of those observed, look like yours. Most automatic, self-updates occurred without observation. Hope there is an easy explanation.

Here’s my example, the latest one that I saved for reference:

2013-12-11, Thurs., ~10:30 PM CST - elrond > Updating VPS files, last update 13121001, prgm. is still v8.0 (400005):
Connecting to repository http://download.ff.avast.com/mac/vpsmac
Downloading vpsmac.lat…
Downloading vpsmac13121001.inf…
Downloading vpsmac13121100.inf…
Downloading vpsmac_13121001_13121100.dif…
Downloading vpsmac13121100.inf…
Downloading vpsmac13121101.inf…
Downloading vpsmac_13121100_13121101.dif…
tar: install/update.sh: Not found in archive
tar: Error exit delayed from previous errors.

  • RAW=‘/Library/Application Support/Avast/files/Setup/filedir/vpsmac.raw’
  • ‘[’ ‘!’ -f ‘/Library/Application Support/Avast/files/Setup/filedir/vpsmac.raw’ ‘]’
  • VERSION=13121101
  • ‘[’ -z 13121101 ‘]’
  • FILES_DIR=‘/Library/Application Support/Avast/files’
  • ‘[’ -d ‘/Library/Application Support/Avast/files/defs/13121101’ ‘]’
  • mkdir -p ‘/Library/Application Support/Avast/files/defs/13121101’
  • ‘[’ 0 -ne 0 ‘]’
  • tar -x -C ‘/Library/Application Support/Avast/files/defs/13121101’ -f ‘/Library/Application Support/Avast/files/Setup/filedir/vpsmac.raw’
  • ‘[’ 0 -ne 0 ‘]’
  • echo ‘[Definitions]’
  • echo Latest=13121101
  • exit 0
    Connecting to repository http://download.ff.avast.com/mac/AAFM
    Downloading AAFM.lat…
    Package AAFM is up to date.
    install/update.sh
    No program update available.
    ------------ The above has always been the last line, ever since Oct. 2, 2013 when v8.0 (40005) replaced v8.0 (39905) ---------------
  • running Avast Free Antivirus with 224 days to go in the trial registration, Program = v8.0 (40005). OS X 10.7.5 (Build 11G63) Mac mini (mid-2011) with Intel CPU and upgraded RAM 4 GB, 200+ GB free on system partition, HDD.