doc: Clean up some recently added PL/pgSQL documentation

Peter Eisentraut <peter_e@gmx.net>

Commit: 232f1475dce23e2fdd0568b35e9a7c470ae6c8ae
Author: Peter Eisentraut <peter_e@gmx.net>
Date: 2014-07-30T03:47:16Z
Releases: 9.5.0
doc: Clean up some recently added PL/pgSQL documentation

- Capitalize titles consistently.
- Fix some grammar.
- Group "Obtaining Information About an Error" under "Trapping Errors",
  but make "Obtaining the Call Stack Context Information" its own
  section, since it's not about errors.

Files

PathChange+/−
doc/src/sgml/plpgsql.sgml modified +14 −25