Fix "unknown command" message when no suggestion

Updates #10953

go.mod

@@ -16,7 +16,7 @@ require (
 	github.com/bep/helpers v0.4.0
 	github.com/bep/lazycache v0.2.0
 	github.com/bep/overlayfs v0.6.0
-	github.com/bep/simplecobra v0.3.0
+	github.com/bep/simplecobra v0.3.1
 	github.com/bep/tmc v0.5.1
 	github.com/clbanning/mxj/v2 v2.5.7
 	github.com/cli/safeexec v1.0.1

go.sum

@@ -633,6 +633,8 @@ github.com/bep/overlayfs v0.6.0 h1:sgLcq/qtIzbaQNl2TldGXOkHvqeZB025sPvHOQL+DYo=
 github.com/bep/overlayfs v0.6.0/go.mod h1:NFjSmn3kCqG7KX2Lmz8qT8VhPPCwZap3UNogXawoQHM=
 github.com/bep/simplecobra v0.3.0 h1:BEeb/Q5qdsv5Yy9Go30ynZtAbI+jHV4f5VtNSXvp91E=
 github.com/bep/simplecobra v0.3.0/go.mod h1:EOp6bCKuuHmwA9bQcRC8LcDB60co2Cmht5X4xMIOwf0=
+github.com/bep/simplecobra v0.3.1 h1:Ms9BucXcJRiGbPYpaJyxItYceQN/pvEZ0+V1+cUcsZ4=
+github.com/bep/simplecobra v0.3.1/go.mod h1:EOp6bCKuuHmwA9bQcRC8LcDB60co2Cmht5X4xMIOwf0=
 github.com/bep/tmc v0.5.1 h1:CsQnSC6MsomH64gw0cT5f+EwQDcvZz4AazKunFwTpuI=
 github.com/bep/tmc v0.5.1/go.mod h1:tGYHN8fS85aJPhDLgXETVKp+PR382OvFi2+q2GkGsq0=
 github.com/bep/workers v1.0.0 h1:U+H8YmEaBCEaFZBst7GcRVEoqeRC9dzH2dWOwGmOchg=

testscripts/commands/commands_errors.txt

@@ -1,7 +1,12 @@
 # Testing various error situations.
 
 ! hugo mods
+stderr 'unknown command "mods" for "hugo"'
 stderr 'Did you mean this\?'
 
 ! hugo mod clea
 stderr 'Did you mean this\?'
+stderr 'clean'
+
+! hugo mod foo
+stderr 'unknown command "foo" for "hugo mod"'