Update ExtUtils-MakeMaker to CPAN version 7.52

Update ExtUtils-MakeMaker to CPAN version 7.52

  [DELTA]

7.52    Wed  4 Nov 19:49:43 GMT 2020

    No changes since v7.51_01

7.51_01 Wed  4 Nov 00:01:41 GMT 2020

    Test fixes:
    - prevent MM_Win32::init_tools() warning in core

7.50    Wed 21 Oct 17:33:53 BST 2020

    No changes since v7.49_04

7.49_04 Tue 13 Oct 18:42:05 BST 2020

    Win32 fixes:
    - make can_dep_space check for short path support

    Macosx fixes:
    - Handle XCode 12's implicit adding of Werror=implicit-function-declaration

7.49_03 Fri  9 Oct 21:30:57 BST 2020

    Regression fixes:
    - disable strict when evaling hints files

    Bug fixes:
    - clean up and improve MIN_PERL_VERSION handling

7.49_02 Thu  8 Oct 08:35:05 BST 2020

    Bug fixes:
    - Change wording of MIN_PERL_VERSION format message to clarify
      fatally

    Doc fixes:
    - Fixed some typos

7.49_01 Tue  6 Oct 18:01:38 BST 2020

    Regression fixes:
    - fix PERL_CORE warnings from ExtUtils::CBuilder