master updated (d509d1e1a8 -> 6dc51d4cca)

[Eli Zaretskii]

eliz pushed a change to branch master.

      from  d509d1e1a8 Merge from origin/emacs-28
       new  58568033f4 Improve wording of Eshell variable interpolation 
code/documentation
       new  6dc51d4cca Support applying indices to more Eshell dollar expansions


Summary of changes:
 doc/misc/eshell.texi              | 43 ++++++++++++++++++++++++++++-----------
 lisp/eshell/esh-arg.el            |  4 ++--
 lisp/eshell/esh-cmd.el            | 25 +++++++++++++----------
 lisp/eshell/esh-var.el            | 38 +++++++++++++++++++---------------
 test/lisp/eshell/esh-var-tests.el | 23 +++++++++++++++++++++
 5 files changed, 92 insertions(+), 41 deletions(-)