Re: quotearg test failures

[Padraig Brady]

Bruno Haible wrote:
> I disagree with the removal of the '%' checks in tests/test-sh-quote.c

Agreed. There is a disparity now because there is a switch
from a longer (shell) to a more concise (c) quoting style
in certain cases (when just a single quote is encountered).
This is fine for most interfaces as the size is passed in,
and we don't write beyond that.

Though for the shell_quote, case shell_quote_length() is separate,
and thus returns too small a value for the coupled shell_quote_copy().

I'll fix this up either by unsetting a new USE_MOST_CONCISE option
from shell_quote_{length,copy}, or implicitly only doing this
more concise representation for "shell-escape" mode.