The short option was listed in the help-text, but not recognized.
---
guix/scripts/substitute.scm | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/guix/scripts/substitute.scm b/guix/scripts/substitute.scm
index 03115ffe44..c044e1d47a 100755
--- a/guix/scripts/substitute.scm
+++ b/guix/scripts/substitute.scm
@@ -777,7 +777,7 @@ default value."
(loop))))))
((or ("-V") ("--version"))
(show-version-and-exit "guix substitute"))
- (("--help")
+ ((or ("-h") ("--help"))
(show-help))
(opts
(leave (G_ "~a: unrecognized options~%") opts))))))
--
2.30.2
