错误提示修改

examcloud-core-questions-service/src/main/java/cn/com/qmth/examcloud/core/questions/service/impl/PaperServiceImpl.java

@@ -451,7 +451,7 @@ public class PaperServiceImpl implements PaperService{
             for (Paper paper : papers) {
                 List<String> examPaperIds = extractConfigService.getExamPaperId(paper.getCourseNo(), paper.getOrgId());
                 if (examPaperIds != null && examPaperIds.contains(paper.getId())) {
-                    msg = "待删除试卷有被调卷规则使 用，不能删除!";
+                    msg = "待删除试卷有被调卷规则使用，不能删除!";
                     msgMap.put("msg", msg);
                     msgMap.put("paperName", paper.getName());
                     return msgMap;