[Axiom-developer] [#268 )abbrev? with too little detail] )help ? does not work, but )abbreviations ? does!

[wyscc]

Changes http://wiki.axiom-developer.org/268AbbrevWithTooLittleDetail/diff
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\begin{axiom}
)abbr domain XYZ
\end{axiom}

\begin{axiom}
)abbrev?
\end{axiom}

The error on the above is the missing space.
However, as shown below, ')abbrev ?' seems really not to have documentation, 
but ')help ?' had, and is not working in this version of Axiom.

\begin{axiom}
)what commands
)help abbreviations
)abbreviations ?
)help help
)help ?
\end{axiom}

Comparing this with the NAG version, ')what commands', ')help abbreviations', 
and ')abbreviations ?' behave the same, but ')help help' and ')help ?' both 
print out about three pages of information, including two Sections A.12. )help, 
and A.1. Introduction from the "on-line version of the book". So there probably 
wasn't any documentation on ')abbreviations' to begin with.  But ')help ?' 
should have worked.
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