# Helpers for terminal output tests.
# Catch tests which should depend on TTY but forgot to. There's no need
-# to aditionally check that the TTY prereq is set here. If the test declared
+# to additionally check that the TTY prereq is set here. If the test declared
# it and we are running the test, then it must have been set.
test_terminal () {
if ! test_declared_prereq TTY