[binutils-gdb] Remove the extra `\n' in warning/error messages

[sergiodj+buildbot@sergiodj.net]

*** TEST RESULTS FOR COMMIT e4097f5ee55a0d14a6213bccb9da39d4878714c8 ***

Author: H.J. Lu <hjl.tools@gmail.com>
Branch: master
Commit: e4097f5ee55a0d14a6213bccb9da39d4878714c8

Remove the extra `\n' in warning/error messages

	* elf-properties.c (_bfd_elf_parse_gnu_properties): Remove the
	extra `\n' in warning/error messages.
	* elf32-i386.c (elf_i386_parse_gnu_properties): Likewise.
	* elf64-x86-64.c (elf_x86_64_parse_gnu_properties): Likewise.