string.c: do not interpret '\\' before '\0' (CVE-2019-15846)

[exim.git] / test / scripts / 0000-Basic / 0368

# removal of duplicate IP addresses
need_ipv4
#
exim -d-all+host_lookup -bt x@mxt9.test.ex x@mxt14.test.ex x@manualroute
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