Re: [PATCH] Replace 'test "${var+set}" = set' with 'test -n "${var+set}"'

[Paul Eggert]

Eric Blake wrote:

test ${var+y}

Hah!  Here's something that's one byte shorter:

${var+:} [ ]

It may be clearer to write it more in the style you used:

[ ${var+y} ]

Both of these work with Solaris 10 /bin/sh.