Do not chomp trailing line separator IO#each with nil separator and chomp

nil separator means no sepator, so chomp should not remove a line
separator.

Partially Fixes [Bug #18770]

1 files changed, 0 insertions, 1 deletions

diff --git a/io.c b/io.c
index 650ea5e377..13cde15360 100644
--- a/io.c
+++ b/io.c
@@ -3875,7 +3875,6 @@ rb_io_getline_0(VALUE rs, long limit, int chomp, rb_io_t *fptr)
     if (NIL_P(rs) && limit < 0) {
 	str = read_all(fptr, 0, Qnil);
 	if (RSTRING_LEN(str) == 0) return Qnil;
-	if (chomp) rb_str_chomp_string(str, rb_default_rs);
     }
     else if (limit == 0) {
 	return rb_enc_str_new(0, 0, io_read_encoding(fptr));