bug#44671: 28.0.50; Require Emacs 26.1, nor Emacs 26.3, in project.el and xref.el core packages

["João Távora" <joaotavora@gmail.com>]

Hi,

Some time ago, I made these two files into GNU ELPA "core" packages, and
I chose Emacs 26.3 as the minimum required version.  That was rather
arbitrary and I should have selected Emacs 26.1 instead.

This is because these packages are required by Eglot, which for now, is
specified to work in Emacs 26.1.

Recently an Eglot user complained that he could no longer run Eglot in
that Emacs version, stating that Emacs 26.1 is the version of Emacs
distributed with Debian stable.

So, I've (briefly) tested these two files in Emacs 26.1 and things seem
to work, so I propose the simple change in the patch after my sig.  If
no-one opposes, I'll push in few days or so.

João

diff --git a/lisp/progmodes/project.el b/lisp/progmodes/project.el
index a395453491..82eb6f6976 100644
--- a/lisp/progmodes/project.el
+++ b/lisp/progmodes/project.el
@@ -1,8 +1,8 @@
 ;;; project.el --- Operations on the current project  -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2015-2020 Free Software Foundation, Inc.
-;; Version: 0.5.2
-;; Package-Requires: ((emacs "26.3") (xref "1.0.2"))
+;; Version: 0.5.3
+;; Package-Requires: ((emacs "26.1") (xref "1.0.2"))
 
 ;; This is a GNU ELPA :core package.  Avoid using functionality that
 ;; not compatible with the version of Emacs recorded above.
diff --git a/lisp/progmodes/xref.el b/lisp/progmodes/xref.el
index e1dd6e56bb..0fd1770cc1 100644
--- a/lisp/progmodes/xref.el
+++ b/lisp/progmodes/xref.el
@@ -1,8 +1,8 @@
 ;;; xref.el --- Cross-referencing commands              -*-lexical-binding:t-*-
 
 ;; Copyright (C) 2014-2020 Free Software Foundation, Inc.
-;; Version: 1.0.3
-;; Package-Requires: ((emacs "26.3"))
+;; Version: 1.0.4
+;; Package-Requires: ((emacs "26.1"))
 
 ;; This is a GNU ELPA :core package.  Avoid functionality that is not
 ;; compatible with the version of Emacs recorded above.