lint: indent copyright lines consistently

lint: push memory management one layer down

Just as with type_name in lint1, it is more convenient if the
application code does not have to deal with memory management.

lint: clean up lint2

lint: invert the -u, -v and -z flags

Now they behave the same as in the manual page.

No functional change.

lint: rename uppercase QUAD to LLONG

No binary change.

lint: indent local variables consistently

No binary change.

lint: rename constant NOTSPEC to NO_TSPEC

It was too easy to misread the old name as NOT_SPEC instead of the
intended NO_TSPEC.

lint: rename lint2 functions to be more expressive

lint: add hyphen to adjective 'old-style'

lint: clean up visual clutter

No functional change.

lint: rename functions to be clearer

No need anymore to keep external identifiers at the "6 significant
initial characters" mandated by C90.

lint: clean up comments

No binary change.

lint: use __RCSID in lint mode as well

Since 1995-10-02, lint supports __asm statements and __asm modifiers.

No binary change.

lint: expand the last remaining __arraycount

For consistency with the other expressions for an array length, which
already use the expanded form.

No functional change.

lint: clean up lint2

No functional change.

lint: un-abbreviate members of sym_t

No functional change.

lint: constify lint2 checking functions

No functional change.

lint: force strict bool mode

No functional change.

lint: add parentheses after sizeof, as required by share/misc/style

No functional change.

lint: in malloc calls, use 'sizeof *ptr' instead of 'sizeof(type)'

No functional change.

lint2: align comments in the code with actual messages

lint: change spelling of initialisation to initialization

That's the wording from the ISO C99 standard.

lint: rename t_isenum and t_aincompl to be more expressive

No functional change.

lint: update data types in comments from int to bool

lint: clean up code (mostly comments)