commands: Handle hugo mod get --help

Fixes #11141

2 files changed, 5 insertions, 1 deletions

diff --git a/commands/mod.go b/commands/mod.go
index 36d4a5596..55b8a8e08 100644
--- a/commands/mod.go
+++ b/commands/mod.go
@@ -224,7 +224,7 @@ Run "go help get" for more information. All flags available for "go get" is also
 				run: func(ctx context.Context, cd *simplecobra.Commandeer, r *rootCommand, args []string) error {
 					// We currently just pass on the flags we get to Go and
 					// need to do the flag handling manually.
-					if len(args) == 1 && args[0] == "-h" {
+					if len(args) == 1 && args[0] == "-h" || args[0] == "--help" {
 						return errHelp
 					}
 
diff --git a/testscripts/commands/mod.txt b/testscripts/commands/mod.txt
index a2ea0ad24..56cea2c00 100644
--- a/testscripts/commands/mod.txt
+++ b/testscripts/commands/mod.txt
@@ -22,6 +22,10 @@ stdout 'Deleted 2\d{2} files from module cache\.'
 cd submod
 hugo mod init testsubmod
 cmpenv go.mod $WORK/golden/go.mod.testsubmod
+hugo mod get -h
+stdout 'hugo mod get \[flags\] \[args\]'
+hugo mod get --help
+stdout 'hugo mod get \[flags\] \[args\]'
 -- hugo.toml --
 title = "Hugo Modules Test"
 [module]