import: Drop empty list items.

* guix/import/cran.scm (listify): Remove empty strings from result list.

1 files changed, 6 insertions, 3 deletions

diff --git a/guix/import/cran.scm b/guix/import/cran.scm
index 845ecb5832..45c679cbe2 100644
--- a/guix/import/cran.scm
+++ b/guix/import/cran.scm
@@ -128,9 +128,12 @@ empty list when the FIELD cannot be found."
                                     #f "( *\\([^\\)]+\\)) *"
                                     value 'pre 'post)
                                    #\,)))
-          ;; When there is whitespace inside of items it is probably because
-          ;; this was not an actual list to begin with.
-          (remove (cut string-any char-set:whitespace <>)
+          (remove (lambda (item)
+                    (or (string-null? item)
+                        ;; When there is whitespace inside of items it is
+                        ;; probably because this was not an actual list to
+                        ;; begin with.
+                        (string-any char-set:whitespace item)))
                   (map string-trim-both items))))))
 
 (define (beautify-description description)