src-test2/usr.bin/m4, branch release/8.4.0

MFC r218909:

2011-02-24T10:23:22Z

Fix typos - remove duplicate "the". PR: bin/154928 Submitted by: Eitan Adler

Use NULL instead of 0 for the return value of fopen().

2007-09-21T01:55:11Z

Approved by: re (kensmith)

Let bsd.prog.mk set SRCS and MAN to their default values.

2005-01-28T16:08:11Z

Added the EXIT STATUS section where appropriate.

2005-01-17T07:44:44Z

Store a pointer to "null" in struct ndblock's defn member instead of a

2004-08-16T14:18:22Z

duplicate allocated on the heap; the address defn points to is significant, and is checked against the address of "null" in certain conditionals. PR: 59883 MFC after: 1 week

Respect locale settings from the environment.

2004-07-12T02:48:40Z

Document missing multibyte character support in utilities specified

2004-07-03T01:28:21Z

by POSIX.

Mechanically kill hard sentence breaks.

2004-07-02T22:22:35Z

Don't depend on NULL's expansion being a pointer, cast it before it is passed

2004-05-18T15:53:58Z

to variadic functions. Approved by: das (mentor)

Fix m4 to properly handle bitwise operators &, ^, and |. Fix operator

2004-05-01T03:59:43Z

precedence. Add short-circuit evaluation. PR: bin/60914 Reviewed by: petef Discussed with: jeff, petef