better error message.

c455544e · Tomoyuki Sahara · 1d1f273c · c455544e
Commit c455544e authored Dec 26, 2014 by Tomoyuki Sahara
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src/io.c src/io.c +1 -1

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--- a/src/io.c
+++ b/src/io.c
@@ -437,7 +437,7 @@ mrb_io_sysread(mrb_state *mrb, mrb_value io)
      }
      break;
    case -1: /* Error */
-      mrb_raise(mrb, E_IO_ERROR, "sysread failed");
+      mrb_sys_fail(mrb, "sysread failed");
      break;
    default:
      if (RSTRING_LEN(buf) != ret) {