Two modifications:
1. The addition of 2013 to the copyright year range for every file;
2. The use of a single year range, instead of potentially multiple
year ranges, as approved by the FSF.
* c-valprint.c (c_val_print): For character arrays
with "print null" option on, print ellipses if
the output is truncated and the next character is not \000.
* valprint.c (MAX_WCHARS): Define.
(WCHAR_BUFLEN): Likewise.
(WCHAR_BUFLEN_MAX): Likewise.
(struct converted_character): New structure.
(count_next_character): New function.
(print_converted_chars_to_obstack): New function.
(generic_printstr): Rewrite using count_next_character
and print_converted_chars_to_obstack.
* gdb.base/printcmds.c: Add invalid_XXX globals
for repeated byte tests.
* gdb.base/printcmds.exp (test_repeat_bytes): New procedure.
* gdb.base/wchar.c (main): Add and construct a wchar_t
array with repeated characters.
* gdb.base/wchar.exp: Add repeated character tests.
