1 files changed, 2 insertions, 6 deletions
diff --git a/error.c b/error.c
index f35dc2ba3e..48cb00da38 100644
--- a/error.c
+++ b/error.c
@@ -956,14 +956,10 @@ syserr_initialize(argc, argv, self)
     else err = "unknown error";
     if (!NIL_P(mesg)) {
 	VALUE str = mesg;
-	size_t len;
 
 	StringValue(str);
-	len = strlen(err)+RSTRING(str)->len+3;
-	mesg = rb_str_new(0, len);
-	snprintf(RSTRING(mesg)->ptr, len+1, "%s - %.*s", err,
-		(int)RSTRING(str)->len, RSTRING(str)->ptr);
-	RSTRING(mesg)->len = strlen(RSTRING(mesg)->ptr);
+	mesg = rb_sprintf("%s - %.*s", err,
+			  (int)RSTRING(str)->len, RSTRING(str)->ptr);
     }
     else {
 	mesg = rb_str_new2(err);