String expansions: fix ${extract }, for the numeric/3-string case. Bug 1807

[exim.git] / test / scripts / 0000-Basic / 0167

# rewrite envelope sender or return path to null
exim -odi userx
****
exim -odi -f remove userx
****
exim -odi -f trakill userx
****
exim -brw error@test.ex
****
exim -brw remove@test.ex
****