Fix typos in 'cue mod'

Closes #199
https://github.com/cuelang/cue/pull/199

GitOrigin-RevId: 36c3035e0caa7cd1c2807991c4b128dce37057cf
Change-Id: I9855322a0808d0c7e4a0fecfdaa534ffa8737a03
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/4520
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
diff --git a/cmd/cue/cmd/mod.go b/cmd/cue/cmd/mod.go
index 43e397e..ff95eb1 100644
--- a/cmd/cue/cmd/mod.go
+++ b/cmd/cue/cmd/mod.go
@@ -28,7 +28,7 @@
 func newModCmd(c *Command) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "mod <cmd> [arguments]",
-		Short: "module maintenace",
+		Short: "module maintenance",
 		Long: `
 `,
 		RunE: mkRunE(c, func(cmd *Command, args []string) error {
@@ -51,7 +51,7 @@
 func newModInitCmd(c *Command) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "init [module]",
-		Short: "initialize new module in current director",
+		Short: "initialize new module in current directory",
 		Long: `Init initializes a cue.mod directory in the current directory,
 in effect creating a new module rooted at the current directory.
 The cue.mod directory must not already exist.