When executing this incomplete command: $ guix system
I expect to get a usage message, instead I get an error: Backtrace: In ice-9/boot-9.scm: 157: 13 [catch #t #<catch-closure 1772780> ...] In unknown file: ?: 12 [apply-smob/1 #<catch-closure 1772780>] In ice-9/boot-9.scm: 63: 11 [call-with-prompt prompt0 ...] In ice-9/eval.scm: 432: 10 [eval # #] In ice-9/boot-9.scm: 2401: 9 [save-module-excursion #<procedure 178f940 at ice-9/boot-9.scm:4045:3 ()>] 4050: 8 [#<procedure 178f940 at ice-9/boot-9.scm:4045:3 ()>] 1724: 7 [%start-stack load-stack ...] 1729: 6 [#<procedure 17a6ea0 ()>] In unknown file: ?: 5 [primitive-load "/gnu/store/c8nks9ldf1wx6fbv9zmq7v42z4fv2hqp-guix-0.8.3.5d09263/bin/.guix-real"] In guix/ui.scm: 1066: 4 [run-guix-command system] In ice-9/boot-9.scm: 157: 3 [catch srfi-34 #<procedure 39cb060 at guix/ui.scm:392:2 ()> ...] 157: 2 [catch system-error ...] In guix/scripts/system.scm: 527: 1 [#<procedure 39cb080 at guix/scripts/system.scm:526:2 ()>] In unknown file: ?: 0 [car ()] ERROR: In procedure car: ERROR: In procedure car: Wrong type (expecting pair): () -Steve
