cue/load: fix comment

Change-Id: If74f9877718af8caceb8317966beb4e14aed1859
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/2621
Reviewed-by: Marcel van Lohuizen <mpvl@google.com>
diff --git a/cue/load/read.go b/cue/load/read.go
index beb04d8..12835bd 100644
--- a/cue/load/read.go
+++ b/cue/load/read.go
@@ -220,8 +220,8 @@
 	return r.buf, r.err
 }
 
-// readImports is like ioutil.ReadAll, except that it expects a Go file as input
-// and stops reading the input once the imports have completed.
+// readImports is like ioutil.ReadAll, except that it expects a CUE file as
+// input and stops reading the input once the imports have completed.
 func readImports(f io.Reader, reportSyntaxError bool, imports *[]string) ([]byte, errors.Error) {
 	r := &importReader{b: bufio.NewReader(f)}