Post-pgindent cleanup

Make slightly better decisions about indentation than what pgindent
is capable of.  Mostly breaking out long function calls into one
line per argument, with a few other minor adjustments.

No functional changes- all whitespace.
pgindent ran cleanly (didn't change anything) after.
Passes all regressions.

src/interfaces/ecpg/pgtypeslib/timestamp.c

@@ -948,7 +948,6 @@ PGTYPEStimestamp_defmt_asc(char *str, const char *fmt, timestamp * d)
 int
 PGTYPEStimestamp_add_interval(timestamp * tin, interval * span, timestamp * tout)
 {
-
 	if (TIMESTAMP_NOT_FINITE(*tin))
 		*tout = *tin;