Thanks to Oliver Bock for correction.
@item char name[8];
Variable name. The variable name must begin with a capital letter or
-the at-sign (@samp{@@}). Subsequent characters may also be octothorpes
+the at-sign (@samp{@@}). Subsequent characters may also be digits, octothorpes
(@samp{#}), dollar signs (@samp{$}), underscores (@samp{_}), or full
stops (@samp{.}). The variable name is padded on the right with spaces.