parens around sizeof arg

[Guy Harris]

> Style for you guys, necessity for others.  The only time I use sizeof is
> in such expressions as, "sizeof(struct foo)"; and our compiler doesn't
> realize that "struct" gets a following name, so "sizeof struct foo" gets
> me a syntax error.

That's a "sizeof(type)", not a "sizeof thing", and the parentheses are
necessary in that case.

	Guy Harris
	{seismo,ihnp4,allegra}!rlgvax!guy