Correct module links in perldelta
Add documentation for Module::CoreList::Utils
Add Module::CoreList::Utils to perldelta as a new module.
In FindExt, use File::Find instead of shelling out to a dir command.

The FindExt code is tested on *nix, and at least some systems have a dir
executable, which generates warnings to stderr when invoked with parameters
intended for the Win32 dir command.

File::Find is portable, and avoids starting a new process.
perldelta for locale fixes

This is the delta for 68e8f474bc686a86c064b695b9c7400313d7af65,
and b127e37e51c21b0a36755dcd19811be931a03d83.
pp.c: Use correct size for two arrays.

The number of bytes the result of changing the case of a single UTF-8
character is given by UTF8_MAXBYTES_CASE.  In one of these arrays, space
is saved by using the proper #define; in the other there is no change
except on EBCDIC platforms.
perlrecharclass: Nits
perlapi: Add note to isASCII
perlfunc: Add caveat about string eval containing NV scalar
UTF8f

This new format string allows char*s to be interpolated with the
utf8ness and length specified as well:

Perl_croak(aTHX_ "Couldn't twiggle the twoggle in \"%"UTF8f"\"",
                  is_utf8, len, s);

This commit changes one function call in gv.c to use UTF8f (it should
go faster now) as an example of its use.

This was brought up in ticket #113824.  This commit does not fix
#113824, but provides groundwork that makes it easier to fix.