[Bug-tar] Format-string warnings in 1.26

[Daniel Macks]

Building tar-1.26 on OS X 10.6, gcc gives a bunch of "format not a string 
literal and no format arguments" warnings. They arise from various functions 
and macro calls and such, but the key trigger is that anything similar to:

  printf(foo);

is considered a potential security risk if foo is a variable rather than a 
simple quoted string. The solution is to do:

  printf("%s", foo);

I don't know anything about tar's internals to know if the cases here are just 
several layers of wrapper functions that actually do things safely (but confuse 
the compiler) but I could do a naive patch to get started clearing them if it 
would be useful.

dan

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Daniel Macks
address@hidden