nongnu: hugo: Don't fail on unsupported architectures.

Currently, architectures other than aarch64, arm32, or x86_64 will fail to
build the entire nonguix channel derivation due to string-append not accepting
the unspecified return value of the `cond` in the hugo package
definition.  Adding the blank string `else` fixes this issue.

* nongnu/packages/hugo.scm (hugo)[source]: Don't fail on unsupported
architectures.

1 files changed, 4 insertions, 2 deletions

diff --git a/nongnu/packages/hugo.scm b/nongnu/packages/hugo.scm
index d4cab2a..1b11a5b 100644
--- a/nongnu/packages/hugo.scm
+++ b/nongnu/packages/hugo.scm
@@ -23,14 +23,16 @@
                                                   ((target-arm32?)
                                                    "arm")
                                                   ((target-x86-64?)
-                                                   "amd64")) ".tar.gz"))
+                                                   "amd64")
+                                                  (else "")) ".tar.gz"))
        (sha256
         (base32 (cond ((target-aarch64?)
                        "1dv2k9j3i3294bl94jhwi645pf5r2143hizxd3xpc3fz8w8cfyy8")
                       ((target-arm32?)
                        "0f3mirqn3x2lrj7gzjyqklj081y7jfyxww2zkccg9f6jq0vcfcxd")
                       ((target-x86-64?)
-                       "0hs4b3nrr1qajrh7f64ibwjrfipqllvifp526kf2gfxnhpkr67l8"))))))
+                       "0hs4b3nrr1qajrh7f64ibwjrfipqllvifp526kf2gfxnhpkr67l8")
+                      (else ""))))))
     (build-system binary-build-system)
     (arguments
      (list