Enable json output on all options disabled including email

Author: Qi Xiao

cmd/server/main.go

@@ -463,7 +463,7 @@ func analyzeFunc(opts *cmd.CommonOptions) http.HandlerFunc {
 }
 
 func handler(opts *cmd.CommonOptions) (err error) {
-if disableJSON && disablePDF && disableHTML {
+if disableJSON && disablePDF && disableHTML && disableEmail {
 disableJSON = false
 }