make(1): normalize shell error messages in tests

Newly supported is bash, which outputs "bash: line 123".

make(1): fix tests for :gmtime and :localtime for 32-bit time_t

The comparison operator had accidentally been '!=' instead of '=='.

While here, proofread the documentation and add r

make(1): fix tests for :gmtime and :localtime for 32-bit time_t

The comparison operator had accidentally been '!=' instead of '=='.

While here, proofread the documentation and add references for where the
32-bit time_t is defined on Linux and FreeBSD.

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Add note about enabling TPM and rnd(4) source.

The read/write/send/recv system calls return ssize_t because -1 is
returned on error. Therefore we must restrict the lengths of any
buffers to NETBSD32_SSIZE_MAX with compat32 to avoid garba

The read/write/send/recv system calls return ssize_t because -1 is
returned on error. Therefore we must restrict the lengths of any
buffers to NETBSD32_SSIZE_MAX with compat32 to avoid garbage return
values.

Fixes ATF lib/libc/sys/t_write:write_err.

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Use device_compatible_entry / of_search_compatible() to match the clock
type rather than calling of_compatible() on different sets of compatible
strings.

KNF consistency: No parentheses are needed around the return value.

Whitespace nits.

Also print mmap return value and error code #ifdef DEBUG_MMAP.

Use device_compatible_entry / of_search_compatible() for the GICv3
quirk table.

Use device_compatible_entry / of_search_compatible() rather than
matching against multiple sets of compatibility strings.

Use device_compatible_entry / of_search_compatible() rather than
matching against multiple sets of compatinbility strings.

Use device_compatible_entry / of_search_compatible() rather than matching
against multiple sets of compatibility strings.

Fix a comment

s/u_intN_t/uintN_t/

lint: clean up code (mostly comments)

lint: clean up member names of control_structure and comments

lint: flatten check_global_variable_size

lint: rename grammar rule lorange

It looked too much like an orange.

lint: rename grammar rules to align with C99 6.7.6

lint: fix precedence of __builtin_offsetof

A previous version of the C grammar contained TBUILTIN_SIZEOF in this
place, which had two typos. Therefore it was handled as a separate
t

lint: fix precedence of __builtin_offsetof

A previous version of the C grammar contained TBUILTIN_SIZEOF in this
place, which had two typos. Therefore it was handled as a separate
token that was otherwise ignored. Curiously, bison didn't warn about
this obvious inconsistency.

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lint: sort tokens in grammar

lint: rename T_SOU to T_STRUCT_OR_UNION

This abbreviation occurred too seldom to be used.

lint: don't treat restrict and _Thread_local as volatile anymore

lint: fix assertion failure for restrict and _Thread_local

lint: add more test cases for duplicate type qualifiers