doc: Clean up some recently added PL/pgSQL documentation
authorPeter Eisentraut <peter_e@gmx.net>
Wed, 30 Jul 2014 03:47:16 +0000 (23:47 -0400)
committerPeter Eisentraut <peter_e@gmx.net>
Wed, 30 Jul 2014 03:47:16 +0000 (23:47 -0400)
commit232f1475dce23e2fdd0568b35e9a7c470ae6c8ae
treea23a1f3f46a07b7720f75e41222a69e3f8e23d01
parentd826d8ecce80e318220a8a4e3d989a38397e5689
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.
doc/src/sgml/plpgsql.sgml