Avoid tr '\n', for Solaris /usr/bin/tr.

Avoid tr '\n', for Solaris /usr/bin/tr.

contrib/
	* check_warning_flags.sh: Use \012 instead of \n with tr.

gcc/:
	PR gcc/42525
	* Makefile.in (write_entries_to_file, install-plugin):
	Use \012 instead of \n with tr.

libjava/:
	* Makefile.am (write_entries_to_file): Use \012 instead of \n
	with tr.
	* scripts/makemake.tcl: Likewise.
	* sources.am: Regenerate.
	* Makefile.in: Regenerate.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@155963 138bc75d-0d04-0410-961f-82ee72b054a4