cp needs the fully-qualified path - not just $0/progname
I've tested this on Bash, Dash, Zsh and Tcsh on Linux and FreeBSD and ${0} already expands to the fully-qualified path. It never expands to ${0}/progname as that would always fail. Can you give and example of where this fails?
Also in functions:1520 "$2" can sometimes be set to //path which causes
the subsequent perl line to fail (difficult to reproduce) So ${2#/} worked
for me - it currently works for me with no modification.
Can you give an example of where this happens? You could also submit a patch if you wish.
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