periodic: replace "tty" with "test -t 0"

[asomers]

Summary

periodic: replace "tty" with "test -t 0"

Apparently using tty for this purpose has been deprecated since 4.4 Lite.

[cy]

usr.sbin/periodic/periodic.sh

87

can this be if [ -t 0] ?

test fork()s and exec()s a new process whereas [ performs the test within the shell, saving a fork() & exec().

[asomers]

Use [ instead of test

[cy]

Thanks. LGTM.

usr.sbin/periodic/periodic.sh

89

Sorry for missing this before but there is nothing between this else end endif. Did you mean

export PERIODIC_IS_INTERACTIVE=0

or unset PERIODIC_IS_INTERACTIVE

[asomers]

usr.sbin/periodic/periodic.sh

89

Oh, crap, I meant to delete that. It was only there for debugging purposes.

[asomers]

Remove debugging detritus

[cy]

LGTM