Prefer `rb_fstring_lit` over `rb_fstring_cstr`

The former states explicitly that the argument must be a literal,
and can optimize away `strlen` on all compilers.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65059 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/io.c b/io.c
index 944beb7d60..32629165cf 100644
--- a/io.c
+++ b/io.c
@@ -13034,7 +13034,7 @@ Init_IO(void)
     rb_output_fs = Qnil;
     rb_define_hooked_variable("$,", &rb_output_fs, 0, rb_str_setter);
 
-    rb_default_rs = rb_fstring_cstr("\n"); /* avoid modifying RS_default */
+    rb_default_rs = rb_fstring_lit("\n"); /* avoid modifying RS_default */
     rb_gc_register_mark_object(rb_default_rs);
     rb_rs = rb_default_rs;
     rb_output_rs = Qnil;