[Perl/perl5] 112f4f: cop.h - show a bit more debug out in JMPENV macros...

[Yves Orton via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: 112f4f94ee0433b46530c806e4b4dee9f06bc382
      
https://github.com/Perl/perl5/commit/112f4f94ee0433b46530c806e4b4dee9f06bc382
  Author: Yves Orton <demer...@gmail.com>
  Date:   2022-08-31 (Wed, 31 Aug 2022)

  Changed paths:
    M cop.h

  Log Message:
  -----------
  cop.h - show a bit more debug out in JMPENV macros, and minor fixes

* Show the return from JMPENV_PUSH().
* use (v) consistently.
* Line up backslashes.