🚀 go-pugleaf

There is a bug in the Arp Type command. It does not normally show
itself, but it does show when used with RDF: (mailed to the moderator
today).
If you do a TYPE FOO, Type Lock()s the argument, FOO, and then
does an Examine(), presumably to see if it is not a directory.
Now when the Lock() succeeds but the Examine() fails, Type 'forgets'
to UnLock() the lock again.
On the normal file system, this will never (hopefully) happen,
but Examine() is not a useful call on a handler like RDF:.
It seems that the Arp CD command has a similar (or identical)
problem.

On the other hand, if you do a TYPE <RDF:etc/etc, the CLI Open()s
the redirection file with no questions asked. This case will
work successully, with no dangling locks left hanging around.

I have not checked what the AmigaDOG Type command does in this
situation.

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