cobol, libgcobol: Fix typos in various files

Signed-off-by: Dhruv Chawla <dhruvc@nvidia.com>

gcc/cobol/ChangeLog:

	* compare.cc (alpha_compare): Fix typos.
	* Make-lang.in: Fix typos.
	* except.cc (cbl_enabled_exceptions_t::turn_on_off): Likewise.
	* genapi.cc (MAX_AFTERS): Likewise.
	(cobol_compare): Likewise.
	(enter_program_common): Likewise.
	(parser_bsearch_end): Likewise.
	(parser_set_pointers): Likewise.
	* gengen.cc (chain_parameter_to_function): Likewise.
	* gengen.h (gg_return): Likewise.
	* genutil.cc (refer_is_clean): Likewise.
	* lexio.cc (right_margin): Likewise.
	(maybe_add_space): Likewise.
	* messages.cc: Likewise.
	* parse_ante.h (procedure_division_ready): Likewise.
	* structs.cc (create_cblc_field_t): Likewise.
	* symbols.cc (special_pair_cmp): Likewise.
	(symbol_table_init): Likewise.
	(symbol_label_add): Likewise.
	* symbols.h: Likewise.
	* util.cc (date_time_fmt): Likewise.
	(cobol_lineno): Likewise.

libgcobol/ChangeLog:

	* README: Fix typos.
	* charmaps.cc (__gg__iconverter): Likewise.
	* common-defs.h (enum cbl_field_attr_t): Likewise.
	* gcobolio.h: Likewise.
	* gfileio.cc (__gg__file_stash): Likewise.
	* gmath.cc (__gg__pow): Likewise.
	* inspect.cc (inspect_backward_format_1): Likewise.
	(__gg__inspect_format_1): Likewise.
	(inspect_backward_format_2): Likewise.
	(__gg__inspect_format_2): Likewise.
	(__gg__inspect_format_1_sbc): Likewise.
	* intrinsic.cc (gets_month): Likewise.
	* libgcobol.cc (get_time_nanoseconds_local): Likewise.
	(__gg__compare_2): Likewise.
	(display_both): Likewise.
	(accept_envar): Likewise.
	(__gg__set_pointer): Likewise.
	(struct cbl_exception_t): Likewise.
	(default_exception_handler): Likewise.
	(convert_for_convert): Likewise.
	* valconv.cc: Likewise.
	* xmlparse.cc (struct xml_ec_value_t): Likewise.