testsuite: The expect framework might introduce CR in output

testsuite: The expect framework might introduce CR in output

When running tests using the "sim" config, the command is launched in
non-readonly mode and the text retrieved from the expect command will
then replace all LF with CRLF. (The problem can be found in sim_load
where it calls remote_spawn without an input file).

libstdc++-v3/ChangeLog:

	* testsuite/27_io/print/1.cc: Allow both LF and CRLF in test.
	* testsuite/27_io/print/3.cc: Likewise.

Signed-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
(cherry picked from commit 4b29be7216daa5921aae340388ef6416b1631f0a)