Fixing spotlight "code validation failed" errors? Every minute or so, the following ends up in syslog:

Oct  3 22:57:12 Mac-mini lsregister[20158] &lt;Notice&gt;: LaunchServices: Begin database seeding
Oct  3 22:57:12 Mac-mini lsregister[20158] &lt;Notice&gt;: LaunchServices: Completed database seeding
Oct  3 22:57:13 Mac-mini mdworker[20155] &lt;Error&gt;: code validation failed in the process of getting
signing information: Error Domain=NSOSStatusErrorDomain Code=-67062 "The operation couldn’t be completed.
(OSStatus error -67062.)" UserInfo=0x7fa5fd803ef0 {SecCSArchitecture=i386}


With lots of repeats of the last line.  It's some sort of mdworker / spotlight issue, but what?
I suspect it is a problem with a plist entry, first obstacle is knowing what file or app to look in...

I have been trying to fix a similar issue from mdworker scanning apps that was traced to an old style InfoPlist.strings for a Classic/OS9 emulator

Just after I succeeded in fixing that (it was quotes within quotes) I started to get 


  mdworker[97078]: code validation failed in the process of getting signing information: Error Domain=NSOSStatusErrorDomain Code=-67062 "(null)" UserInfo={SecCSArchitecture=ppc}


I am not sure yet as I have just expanded the detail of logs I am looking at and not confirmed the source of the new message. It should have been there as I rolled out my fix among the many copies over a few days but was not seen until I just went deeper in logs.

Hope that helps if you are still stuck! I may report back...