cmd/cue: fix typos in cue-help-filetypes

Signed-off-by: Jonathan Matthews <github@hello.jonathanmatthews.com>
Change-Id: I627dec988d55f21e38650b408a70fc091e24a0f0
Reviewed-on: https://review.gerrithub.io/c/cue-lang/cue/+/1208122
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: CUEcueckoo <cueckoo@cuelang.org>

cmd/cue/cmd/help.go

@@ -548,7 +548,7 @@ $ cue eval --with-context -l 'path.Base(filename)' -l data.kind foo.yaml
 var filetypeHelp = &cobra.Command{
 	Use:   "filetypes",
 	Short: "supported file types and qualifiers",
-	Long: `The cue tools supports the following file types:
+	Long: `The cue tool supports the following file types:
 
     Tag         Extensions      Description
     cue         .cue            CUE source files.
@@ -573,7 +573,7 @@ interpreted as data. CUE and Go are interpreted as schema by
 default, but may be selected to operate in data mode.
 
 The cue tool will infer a file's type from its extension by
-default. The user my override this behavior by using qualifiers.
+default. The user may override this behavior by using qualifiers.
 A qualifier takes the form
 
     <tag>{'+'<tag>}':'

cmd/cue/cmd/testdata/script/help.txtar

@@ -31,7 +31,7 @@ stdout -count=1 '^Publish the current module to an OCI registry\.'
 # Requesting additional help topics; the form without "help" is phased out.
 
 exec cue help filetypes
-stdout -count=1 '^The cue tools supports the following file types:$'
+stdout -count=1 '^The cue tool supports the following file types:$'
 
 ! exec cue filetypes
 ! stdout .