chore: fix some function names in comment (#1178)

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## Description

 fix some function names in comment

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Signed-off-by: cuiyourong <cuiyourong@gmail.com>

cmd/motr/internal/fetch.go

@@ -30,7 +30,7 @@ var (
 	jsWasmHTTP   = jsGlobal.Get("wasmhttp")
 )
 
-// serveFetch serves HTTP requests with optimized handler management
+// ServeFetch serves HTTP requests with optimized handler management
 func ServeFetch(handler http.Handler) func() {
 	h := handler
 	if h == nil {