Make use of psprintf() in recent changes

src/backend/utils/adt/geo_ops.c

@@ -1010,16 +1010,12 @@ Datum
 line_out(PG_FUNCTION_ARGS)
 {
 	LINE	   *line = PG_GETARG_LINE_P(0);
-	char	   *buf;
 	int			ndig = DBL_DIG + extra_float_digits;
 
 	if (ndig < 1)
 		ndig = 1;
 
-	buf = palloc(ndig * 3 + 5);
-	sprintf(buf, "{%.*g,%.*g,%.*g}", ndig, line->A, ndig, line->B, ndig, line->C);
-
-	PG_RETURN_CSTRING(buf);
+	PG_RETURN_CSTRING(psprintf("{%.*g,%.*g,%.*g}", ndig, line->A, ndig, line->B, ndig, line->C));
 }
 
 /*

src/backend/utils/error/elog.c

@@ -2364,10 +2364,7 @@ log_line_prefix(StringInfo buf, ErrorData *edata)
 							 */
 
 							char *hostport;
-							int alloclen = strlen(MyProcPort->remote_host) +
-								 strlen(MyProcPort->remote_port) + 3; 
-							hostport = palloc(alloclen);
-							sprintf(hostport, "%s(%s)", MyProcPort->remote_host, MyProcPort->remote_port);
+							hostport = psprintf("%s(%s)", MyProcPort->remote_host, MyProcPort->remote_port);
 							appendStringInfo(buf, "%*s", padding, hostport);
 							pfree(hostport);
 						}