Hi,

I've applied adjustment to git commit message and to package description:

--8<---------------cut here---------------start------------->8---
modified   gnu/packages/astronomy.scm
@@ -8330,19 +8330,34 @@ (define-public sunwait
     (build-system gnu-build-system)
     (arguments
      (list
-      #:tests? #f
+      #:tests? #f ; no tests provided
       #:make-flags
       #~(list (string-append "CC=" #$(cc-for-target)))
       #:phases
       #~(modify-phases %standard-phases
-          (delete 'configure)
+          (delete 'configure) ; no configure script is provided
           (replace 'install
             (lambda _
               (install-file "sunwait"
                             (string-append #$output "/bin")))))))
     (home-page "https://github.com/risacher/sunwait")
-    (synopsis "Sunwait calculates sunrise or sunset times.")
-    (description "Sunwait calculates sunrise or sunset times with civil, nautical, astronomical and custom twilights.")
+    (synopsis "Sunrise and sunset times calculation")
+    (description
+     "Sunwait calculates sunrise or sunset times with civil, nautical,
+astronomical and custom twilights.  The sun's position is calculated using
+time, and position - latitude and longitude should be specified on the command
+line.
+
+Features:
+
+@itemize
+@item calculates sunrise and sunset for given coordinates
+@item can wait for sunrise/sunset, or return DAY or NIGHT codes
+@item works with Windows Task Scheduler (or cron)
+@item supports custom twilight angles
+@item used to automate domestic lighting with Arduino transmitter and radio
+controlled sockets
+@end itemize")
     (license license:gpl3)))
--8<---------------cut here---------------end--------------->8---

Pushed to master as 33fdb25fac453d1239739b9d5e239f1140b16532.

Thanks,
Oleg