623d9e2ab3
check_user_name) renamed to is_valid_user_name (resp. is_valid_group_name). is_valid_user_name and is_valid_group_name return a bool. * src/grpck.c, src/newusers.c, src/usermod.c, src/useradd.c, src/groupmod.c, src/pwck.c, src/groupadd.c: Use is_valid_user_name and is_valid_group_name, following above change. * libmisc/chkname.c: Avoid implicit conversion of chars to booleans. Add brackets and parenthesis.