diff --git a/src/backend/utils/adt/datetime.c b/src/backend/utils/adt/datetime.c
index 320496e..70efc6a 100644
--- a/src/backend/utils/adt/datetime.c
+++ b/src/backend/utils/adt/datetime.c
@@ -2802,7 +2802,7 @@ DecodeISO8601Interval(char *str, struct pg_tm * tm, fsec_t *fsec)
 			str++;
 			continue;
 		}
-		if (!(isdigit(*str) || *str == '-' || *str == '.') )
+		if (!(isdigit(*str) || *str == '-' || *str == '.'))
 			return DTERR_BAD_FORMAT;
 
 		fval     = strtod(str, &newstr);
@@ -2833,9 +2833,10 @@ DecodeISO8601Interval(char *str, struct pg_tm * tm, fsec_t *fsec)
 					if (fval != 0)
 						tm->tm_mon += (fval * 12);
 					break;
-				case 'T': /* ISO 8601 5.5.4.2.2 Alternative Format / Basic */
+				case 'T': /* ISO 8601 4.4.3.3 Alternative Format / Basic */
 				case 0:
-					if (numlen == 8) {
+					if (numlen == 8)
+					{
 						tm->tm_year += val / 10000;
 						tm->tm_mon  += (val / 100) % 100;
 						tm->tm_mday += val % 100;
@@ -2845,7 +2846,7 @@ DecodeISO8601Interval(char *str, struct pg_tm * tm, fsec_t *fsec)
 							return 0;
 						break;
 					} /* Else fall through to extended alternative format */
-				case '-': /* ISO 8601 5.5.4.2.2 Alternative Format, Extended */
+				case '-': /* ISO 8601 4.4.3.3 Alternative Format, Extended */
 					tm->tm_year += val;
 					tm->tm_mon  += (fval * 12);
 					if (unit == 0)
@@ -2891,15 +2892,16 @@ DecodeISO8601Interval(char *str, struct pg_tm * tm, fsec_t *fsec)
 					tm->tm_hour += val;
 					AdjustFractionalSeconds(fval, tm, fsec, SECS_PER_HOUR);
 					break;
-				case 0: /* ISO 8601 5.5.4.2.2 Alternative Format */
-				    if (numlen == 6) {
+				case 0: /* ISO 8601 4.4.3.3 Alternative Format */
+				    if (numlen == 6)
+					{
 				    	tm->tm_hour += val / 10000;
 				    	tm->tm_min  += (val / 100) % 100;
 				    	tm->tm_sec  += val % 100;
 				    	AdjustFractionalSeconds(fval, tm, fsec, 1);
 				    	return 0;
 					} /* Else fall through to extended alternative format */
-				case ':': /* ISO 8601 5.5.4.2.2 Alternative Format, Extended */
+				case ':': /* ISO 8601 4.4.3.3 Alternative Format, Extended */
 					tm->tm_hour += val;
 					AdjustFractionalSeconds(fval, tm, fsec, SECS_PER_HOUR);
 					if (unit == 0)