Tabular reports from bal, bs etc. have until now been rendered on
the terminal with one final blank line, for readability.
This change drops the blank line.
This is consistent with the non-tabular balance and register output
(not print, which is a special case), and with most unix commands.
The real reason for it, which I admit is flimsy, is that I can now omit
the final delimiter (>=0) when using shelltestrunner 1.9's new format,
making functional tests easier to maintain and more readable.
If there's opposition, this could be reverted.
Previously, if you specified no report interval, the text output of
these commands was a simple report like the original balance command,
with amounts on the left and account names on the right. Also,
balances used arithmetic sign like the balance command.
Now it always draws a table, with account names in the left
column, and shows balances with normal-positive sign, consistent with
the multicolumn reports. Less code, fewer bugs.
Income, liability and equity balances, which until now we have
always displayed as negative numbers, are now shown as normally positive
by these reports.
Negative numbers now indicate a contra-balance (eg an overdrawn
checking account), a net loss, a negative net worth, etc.
This makes these reports more like conventional financial statements,
and easier to read and share with normal people.
