instability in Berkeley versus AT&T releases

[Peter da Silva]

> "Index" is a poor name for a subroutine in the library for the same reason
> that "test" is a poor name for a program in /bin.  Since it's easy to handle
> old programs with either the -D switch of cc or with any reasonable editor,
> what's the problem?  A lot of future users will be saved some nasty debugging.
> The most it ever costs me is a makefile edit and a second make.

So that's why they made test a builtin... I thought it was for efficiency
reasons :->. Do you suppose we could convince them that echo is a dumb name
for a program too?