pgindent run for release 9.3

This is the first run of the Perl-based pgindent script.  Also update
pgindent instructions.

src/interfaces/ecpg/compatlib/informix.c

@@ -311,7 +311,6 @@ deccvlong(long lng, decimal *np)
 int
 decdiv(decimal *n1, decimal *n2, decimal *result)
 {
-
 	int			i;
 
 	errno = 0;

src/interfaces/ecpg/ecpglib/typename.c

@@ -65,7 +65,7 @@ ecpg_type_name(enum ECPGttype typ)
 		default:
 			abort();
 	}
-	return ""; /* keep MSC compiler happy */
+	return "";					/* keep MSC compiler happy */
 }
 
 int

src/interfaces/ecpg/pgtypeslib/datetime.c

@@ -52,7 +52,6 @@ PGTYPESdate_from_timestamp(timestamp dt)
 date
 PGTYPESdate_from_asc(char *str, char **endptr)
 {
-
 	date		dDate;
 	fsec_t		fsec;
 	struct tm	tt,

src/interfaces/ecpg/pgtypeslib/interval.c

@@ -801,7 +801,6 @@ AppendSeconds(char *cp, int sec, fsec_t fsec, int precision, bool fillzeros)
 int
 EncodeInterval(struct /* pg_ */ tm * tm, fsec_t fsec, int style, char *str)
 {
-
 	char	   *cp = str;
 	int			year = tm->tm_year;
 	int			mon = tm->tm_mon;

src/interfaces/ecpg/pgtypeslib/numeric.c

@@ -1362,7 +1362,6 @@ done:
 int
 PGTYPESnumeric_cmp(numeric *var1, numeric *var2)
 {
-
 	/* use cmp_abs function to calculate the result */
 
 	/* both are positive: normal comparation with cmp_abs */

src/interfaces/ecpg/pgtypeslib/timestamp.c

@@ -949,7 +949,6 @@ int
 PGTYPEStimestamp_add_interval(timestamp * tin, interval * span, timestamp * tout)
 {
 
-
 	if (TIMESTAMP_NOT_FINITE(*tin))
 		*tout = *tin;
 

src/interfaces/ecpg/preproc/type.c

@@ -506,8 +506,8 @@ ECPGdump_a_struct(FILE *o, const char *name, const char *ind_name, char *arrsiz,
 	 */
 	struct ECPGstruct_member *p,
 			   *ind_p = NULL;
-	char		*pbuf = (char *) mm_alloc(strlen(name) + ((prefix == NULL) ? 0 : strlen(prefix)) + 3);
-	char		*ind_pbuf = (char *) mm_alloc(strlen(ind_name) + ((ind_prefix == NULL) ? 0 : strlen(ind_prefix)) + 3);
+	char	   *pbuf = (char *) mm_alloc(strlen(name) + ((prefix == NULL) ? 0 : strlen(prefix)) + 3);
+	char	   *ind_pbuf = (char *) mm_alloc(strlen(ind_name) + ((ind_prefix == NULL) ? 0 : strlen(ind_prefix)) + 3);
 
 	if (atoi(arrsiz) == 1)
 		sprintf(pbuf, "%s%s.", prefix ? prefix : "", name);