pgsql: doc: Ensure intermediate path creation with mkdir

doc: Ensure intermediate path creation with mkdir

The mkdir command in the Installation from Source Short Version docs
didn't use the -p intermediate path creation parameter which likely
would cause the command to fail. At the time of writing, -p wasn't
universally available but it can now be relied upon existing. The -p
parameter is defined by POSIX, at least since posix-2004.

Reported-by: Daniel Westermann <daniel(dot)westermann(at)dbi-services(dot)com>
Reviewed-by: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Discussion: https://postgr.es/m/ZR0P278MB0920263E7F2D546A33E50079D20E9@ZR0P278MB0920.CHEP278.PROD.OUTLOOK.COM

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/3ac577b912fb869f8c472c66f9bd60db833a103a

Modified Files
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doc/src/sgml/installation.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)