Standardize references to Zstandard as <productname>
authorAlvaro Herrera <alvherre@alvh.no-ip.org>
Thu, 21 Apr 2022 17:12:21 +0000 (19:12 +0200)
committerAlvaro Herrera <alvherre@alvh.no-ip.org>
Thu, 21 Apr 2022 17:12:21 +0000 (19:12 +0200)
commit586955dddecc95e0003262a3954ae83b68ce0372
tree9d889e9d6a39cda6e68284aa70cda597d66ca7e6
parentbb85eec6fe9178aa849b43414f2db440bb5edfbd
Standardize references to Zstandard as <productname>

Some places used ZSTD, which isn't widely used anywhere.  Use ZSTD only
to refer to the environment variable; use zstd (all lowercase) to refer
to the utility.

Per complaint from Justin Pryzby.

Discussion: https://postgr.es/m/20220414003301.GT26620@telsasoft.com
doc/src/sgml/install-windows.sgml
doc/src/sgml/installation.sgml