Good morning,
http://www.gnu.org/software/bash/manual/bashref.html#Brace-Expansion
The brace expansion increment syntax is shown wrong.
OLD:
A sequence expression takes the form {x..y[incr]}, where x and y are
either integers or single characters, and incr, an optional increment,
is an integer.
PROPOSED NEW:
A sequence expression takes the form {x..y[..incr]}, where x and y are
either integers or single characters, and incr, an optional increment,
is an integer separated by `..'.
Sorry if this already is fixed in the base documents, I didn't have time
to check deeply.
Jan