collect2.c (main): Const-ification.

collect2.c (main): Const-ification.

	* collect2.c (main): Const-ification.
	* gcc.c (translate_options, process_command): Use xstrdup in
	lieu of xmalloc/strcpy.
	(main): Use concat in lieu of xmalloc/strcpy/strcat.
cp:
	* mangle.c (mangle_conv_op_name_for_type): Use concat in lieu of
	xmalloc/strcpy/strcat.

From-SVN: r45631