master updated (b64d04c -> e823709)

[Paul Eggert]

eggert pushed a change to branch master.

      from  b64d04c   Fix gpg2-related test failures on RHEL 7.8
       new  438975b   regex-emacs omit POS runtime check
       new  768bea3   regex-emacs omit allocation of 3 slots
       new  82c089f   regex-emacs: omit regstart tests and regend set
       new  4c0a975   regex-emacs: subscript-check register numbers
       new  bd5771f   regex-emacs: fix leak on memory allocation failure
       new  e823709   regex-emacs: copy less when reallocating


Summary of changes:
 src/regex-emacs.c | 61 ++++++++++++++++++++++++++++++++-----------------------
 1 file changed, 36 insertions(+), 25 deletions(-)