The changes introduced with
56976a127c make --columns default to
terminal width, as returned by ioctl()
break the DocTests when run in a terminal with a width different
from the standard of 80 columns.
command:validate)
It is now possible to use @smallexample @c input:validate (and
command:validate) to specify that an example should just be read by
ledger (and checked for errors) or that a ledger command should be
executed (with default input -f sample.dat, if none is specified).
These annotations have been added into ledger3.texi where appropriate.
Running the ledger3.texi test now takes a second or two, but a lot of
the @smallexamples are now automatically tested.
The DocTests.py script will parse a given texinfo file for specially
marked examples, run the ledger command from the example, and check
the result against the example output from the documentation.
