19/22: gnu: pplacer-scripts: Use INVOKE.

[Ricardo Wurmus]

rekado pushed a commit to branch master
in repository guix.

commit a1e83a9856100b7d1993ad7917e11d8bb37c2646
Author: Ricardo Wurmus <address@hidden>
Date:   Thu Nov 8 10:06:35 2018 +0100

    gnu: pplacer-scripts: Use INVOKE.
    
    * gnu/packages/bioinformatics.scm (pplacer-scripts)[arguments]: Use INVOKE 
and
    return #T unconditionally.
---
 gnu/packages/bioinformatics.scm | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index 94b8266..8820ba0 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -4410,8 +4410,7 @@ downstream analysis.")
          (add-after 'unpack 'enter-scripts-dir
            (lambda _ (chdir "scripts")))
          (replace 'check
-           (lambda _
-             (zero? (system* "python" "-m" "unittest" "discover" "-v"))))
+           (lambda _ (invoke "python" "-m" "unittest" "discover" "-v") #t))
          (add-after 'install 'wrap-executables
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))