pgsql: Add support for wrapping to psql's "extended" mode. This makes i

Add support for wrapping to psql's "extended" mode. This makes it very
feasible to display tables that have both many columns and some large
data in some columns (such as pg_stats).

Emre Hasegeli with review and rewriting from Sergey Muraviov and
reviewed by Greg Stark

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/6513633b94173fc1d9e2b213c43f9422ddbf5faa

Modified Files
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src/bin/psql/print.c               |  181 ++++++-
src/test/regress/expected/psql.out |  944 ++++++++++++++++++++++++++++++++++++
src/test/regress/sql/psql.sql      |  120 +++++
3 files changed, 1222 insertions(+), 23 deletions(-)