v5.22.0: Redundant argument in %s versus minimum width in sprintf

JadeNB has asked for the wisdom of the Perl Monks concerning the following question:

Hi, folks! I recently saw a post on TSE about an apparent incompatibility between v5.22.0 and TeXLive's tlmgr progamme. Based on the description in the self-answer, it seems that (some of) the problem is that lines 3109–3110 of tlmgr say:

        info("[" . sprintf ('%*2$s', $currnr, $totalnrdigits) .
          "/$totalnr, $estrem/$esttot] update: $pkg [${kb}k] ($rev -> 
+$mediarevstr)");
[download]

and that this produces the error Redundant argument in sprintf at /usr/local/texlive/bin/tlmgr line 3109. Based on ~~Redundant argument in s~~ Redundant argument in %s, this is because of, well, a redundant argument in sprintf—I guess it's bothered by the fact that two strings are passed, but only one is referenced. However, sprintf lists almost this exact useage as recommended. Is this a (Perl) bug, or perhaps just a lag between online documentation and the latest version (as evidenced by the fact that perldoc online doesn't currently know about this new error message!); and / or is there some appropriate work-around?

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Re: v5.22.0: Redundant argument in %s versus minimum width in sprintf by dave_the_m (Monsignor) on Jul 01, 2015 at 13:48 UTC
It's a bug. It's already been reported and fixed, and is in the process of being back-ported to 5.22.1-tobe. Dave.	[reply]
Re: v5.22.0: Redundant argument in %s versus minimum width in sprintf by Anonymous Monk on Jul 01, 2015 at 06:55 UTC
ATM http://perldoc.perl.org/functions/sprintf.html#%28minimum%29-width says Perl 5 version 20.1 documentation https://metacpan.org/pod/perlfunc#sprintf-FORMAT-LIST is ATM v5.22.0 current The introduction Bug #121025 for perl5: printf warns about too few arguments, but not too many Add a new warning about redundant printf arguments I guess its a bug in the warnings ... bugs like this are frequent ( not testing stuff thats in the documentation, then it breaks) But then again http://perl5.git.perl.org/perl.git/blob/HEAD:/t/op/sprintf.t `647 >%y< >''< >%y INVALID REDUNDANT< 648 >%z< >''< >%z INVALID REDUNDANT< 649 >%2$d %1$d< >[12, 34]< >34 12< 650 >%2$d< >[12, 3]< > 12 REDUNDANT< 651 >%2$d %d< >[12, 34]< >34 12< 652 >%2$d %d %d< >[12, 34]< >34 12 34< 653 >%3$d %d %d< >[12, 34, 56]< >56 12 34< 654 >%2$3$d %d< >[12, 34, 3]< > 34 12< 655 >%3$2$d %d< >[12, 34, 3]< >%3$2$d 12 INVALID REDUNDANT<` [download] It also happens frequently that stuff gets implemented by those who don't understand how it works .... so this needs a new bug on rt because one of these things is wrong , whichever one it is	[reply] [d/l]

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