pgsql: psql: Make \d+ inheritance tables list formatting consistent wit

psql: Make \d+ inheritance tables list formatting consistent with other objects

This followw up on the previous change (commit 7bff9f106a5) for partitions by
applying the same formatting to inheritance tables lists.

Previously, \d+ <table> displayed inheritance tables differently from other
object lists: the first inheritance table appeared on the same line as the
"Inherits" header. For example:

Inherits: test_like_5,
test_like_5x

This commit updates the output so that inheritance tables are listed
consistently with other objects, with each entry on its own line starting
below the header:

Inherits:
test_like_5
test_like_5x

Author: Peter Smith <smithpb2250(at)gmail(dot)com>
Reviewed-by: Chao Li <li(dot)evan(dot)chao(at)gmail(dot)com>
Reviewed-by: Neil Chen <carpenter(dot)nail(dot)cz(at)gmail(dot)com>
Reviewed-by: Greg Sabino Mullane <htamfids(at)gmail(dot)com>
Reviewed-by: Soumya S Murali <soumyamurali(dot)work(at)gmail(dot)com>
Reviewed-by: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Discussion: https://postgr.es/m/CAHut+Pu1puO00C-OhgLnAcECzww8MB3Q8DCsvx0cZWHRfs4gBQ@mail.gmail.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/1a11405a436038293f425f2ffc41b02235eda912

Modified Files
--------------
src/bin/psql/describe.c | 17 ++-
src/test/regress/expected/alter_table.out | 30 +++--
src/test/regress/expected/constraints.out | 42 ++++---
src/test/regress/expected/create_table_like.out | 16 ++-
src/test/regress/expected/foreign_data.out | 45 ++++---
src/test/regress/expected/generated_stored.out | 17 ++-
src/test/regress/expected/generated_virtual.out | 17 ++-
src/test/regress/expected/inherit.out | 151 +++++++++++++++---------
src/test/regress/expected/triggers.out | 3 +-
src/test/regress/expected/without_overlaps.out | 9 +-
10 files changed, 218 insertions(+), 129 deletions(-)