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-rw-r--r--io.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/io.c b/io.c
index a7e1047e7b2..0c2ba4d0aff 100644
--- a/io.c
+++ b/io.c
@@ -829,6 +829,9 @@ io_read(argc, argv, io)
rb_str_resize(str, 0);
return str;
}
+ if (len > RSTRING(str)->len) {
+ rb_str_resize(str,len);
+ }
}
READ_CHECK(fptr->f);