doc: Update note about source code formatting
authorPeter Eisentraut
Thu, 26 Sep 2019 08:51:39 +0000 (10:51 +0200)
committerPeter Eisentraut
Thu, 26 Sep 2019 08:52:19 +0000 (10:52 +0200)
commitb4d615aaa1ecedcf1e2ca415cd2893d1f18aeeca
tree90ea229ca99ea6b6b4c57fab91ce89932b1802f5
parent66e0ea75bb9d4b40c734067dd7c7e1fc804a88cb
doc: Update note about source code formatting

Update the note about why not to use // comments, even though it's now
technically supported.

The note about variable declarations was dropped here because it's
addressed more properly later in the chapter.

Discussion: https://www.postgresql.org/message-id/flat/156924954640.1117.6309209869705522549%40wrigleys.postgresql.org
doc/src/sgml/sources.sgml