[tex-live] tlmgr warning with perl 5.22.0

[Vladimir Lomov]

Hello,
** Karl Berry [2015-06-23 22:54:25 +0000]:

>     Redundant argument in sprintf at
>     /usr/local/opt/texlive/2015/bin/i386-freebsd/tlmgr line 3109.
> 
> As far as I can see, this is a bug in Perl 5.22.0.  For instance, the
> Perl manual has this example:
> 
>     printf '<%*2$s>', "a", 6; # prints "<	  a>"
> 
> Perl 5.22.0, with -w, reports the same warning:
>   Redundant argument in printf at /tmp/x.pl line 1.
> 
> But Both arguments are being used -- the a is the value, the 6 is the
> field length.  I'll see if I can report it to Perl.
> 
> karl

I reported recently about this issue on the list with a solution, see
http://tug.org/pipermail/tex-live/2015-June/037025.html

As for the behaviour, it is documented in perldelta(1perl), section "New
Warnings":

   Redundant argument in %s

   (W redundant) You called a function with more arguments than were
   needed, as indicated by information within other arguments you
   supplied (e.g. a printf format). Currently only emitted when a
   printf-type format required fewer arguments than were supplied, but
   might be used in the future for e.g. "pack" in perlfunc.

   The warnings category "redundant" is new. See also [perl #121025]
   <https://rt.perl.org/Ticket/Display.html?id=121025>.

---
WBR, Vladimir Lomov

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