* language.c (local_hex_string_custom): Simplify. Do not depend

* language.c (local_hex_string_custom): Simplify.  Do not depend
on PRINTF_HAS_LONG_LONG or CC_HAS_LONG_LONG.

* memattr.c (mem_info_command): Replace calls to
longest_local_hex_string and longest_local_hex_string_custom.
* buildsym.c (make_blockvector): Ditto.
* solib.c (info_sharedlibrary_command): Ditto.
* tracepoint.c (tracepoints_info): Ditto.
* symtab.c (print_msymbol_info): Ditto.

* language.c (local_hex_string): Delete.
(local_hex_string_custom): Delete.
(longest_local_hex_string): Rename to local_hex_string.
(longest_local_hex_string_custom): Rename to
local_hex_string_custom.
* language.h (local_hex_string): Change parameter type to LONGEST.
(local_hex_string_custom): Ditto.
(longest_local_hex_string): Delete declaration.
(longest_local_hex_string_custom): Ditto.

* solib.c: Update copyright.
* memattr.c: Update copyright.