pgsql: Switch from tabs to spaces in postgresql.conf.sample.

Switch from tabs to spaces in postgresql.conf.sample.

This file is written for 8-space tabs, since we expect that most
users who edit their configuration files use 8-space tabs.
However, most of PostgreSQL is written for 4-space tabs, and at
least one popular web interface defaults to 4-space tabs. Rather
than trying to standardize on a particular tab width for this file,
let's just switch to spaces.

Reviewed-by: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Reviewed-by: Chao Li <li(dot)evan(dot)chao(at)gmail(dot)com>
Discussion: https://postgr.es/m/aReNUKdMgKxLqmq7%40nathan

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/f63ae72bbcea057534144eaf27ffe3f6e9267511

Modified Files
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src/backend/utils/misc/postgresql.conf.sample | 976 +++++++++++++-------------
1 file changed, 488 insertions(+), 488 deletions(-)