bash built-ins `true' and `false' undocumented

[Roland Winkler]

I guess there is not too much one can say about the bash built-ins
`true' and `false'.  Nonetheless, I suggest that the info pages
should list these built-ins individually like other built-ins.
Currently, the only hint on their existence is buried in the info
node on Shell Builtin Commands saying that

  The `:', `true', `false', and `test' builtins do not accept options and
  do not treat `--' specially.

Or am I missing something?  (I don't know whether these commands
should be listed in the info node on Bourne Shell Builtins or under
Bash Builtins.)

I am using GNU bash, version 4.2.25(1)-release (x86_64-pc-linux-gnu).
Also, I have Edition 4.2, last updated 28 December 2010, of `The GNU Bash
Reference Manual', for `Bash', Version 4.2.

Roland