case sensitivity in commands

[Jeremy Nicoll - ml get_iplayer]

I've known for a while that it doesn't seem to matter whether the text
fragments used to search for a programme name are in upper, lower or mixed
case, so was surprised to find (when I accidentally had caps lock pressed)
that

  --VERSION SIGNED

didn't match a programme which I knew existed, whereas

  --VERSION signed

did work.  Is this the behaviour you'd expect?    

-- 
Jeremy Nicoll - my opinions are my own.