# Pushy I/O.
-backtick quoted execution (``, qx) ck_null t%
+backtick quoted execution (``, qx) ck_open t%
# glob defaults its first arg to $_
glob glob ck_glob t@ S?
readline <HANDLE> ck_null t%
# I/O.
-open open ck_fun ist@ F S? L
+open open ck_open ist@ F S? L
close close ck_fun is% F?
pipe_op pipe ck_fun is@ F F