[bug#40350] [PATCH] ui: Mention that changes to package definitions can cause "upgrades".

[Leo Famulari]

* guix/ui.scm (show-manifest-transaction)[upgrade-string]: Use the
package name in UI message.
---
 guix/ui.scm | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/guix/ui.scm b/guix/ui.scm
index 1e24fe5dca..20b1e79ca9 100644
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -14,6 +14,7 @@
 ;;; Copyright © 2019 Chris Marusich <address@hidden>
 ;;; Copyright © 2019 Tobias Geerinckx-Rice <address@hidden>
 ;;; Copyright © 2019 Simon Tournier <address@hidden>
+;;; Copyright © 2020 Leo Famulari <address@hidden>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -1162,11 +1163,13 @@ separator between subsequent columns."
                               name
                               (string-append name ":" output)))
                         names outputs)
-                   (map (lambda (old new)
+                   (map (lambda (old new name)
                           (if (string=? old new)
-                              (G_ "(dependencies changed)")
+                              (format
+                                (G_ "(dependencies or ~a package recipe 
changed)")
+                                name)
                               (string-append old " " → " " new)))
-                        old-version new-version))
+                        old-version new-version names))
               #:initial-indent 3))
 
   (let-values (((remove install upgrade downgrade)
-- 
2.26.0