[tests] t/test_mod_ssi adjust to follow symlinks
[tests] t/test_mod_ssi adjust to follow symlinks

t/test_mod_ssi adjust to follow symlinks

/tmp may be a symlink on MacOS

gstrauss/lighttpd1.4,gstrauss/lighttpd1.4,lighttpd/lighttpd1.4,gstrauss/lighttpd1.4,lighttpd/lighttpd1.4,lighttpd/lighttpd1.4,gstrauss/lighttpd1.4,gstrauss/lighttpd1.4,gstrauss/lighttpd1.4,lighttpd/lighttpd1.4,lighttpd/lighttpd1.4,lighttpd/lighttpd1.4