!1308 修复pg_recvlogical工具校验逻辑复制槽名称长度时候，未考虑双引号，在边界条件校验失败

Merge pull request !1308 from zhangxubo/bugfix

src/gausskernel/storage/replication/walsender.cpp

@@ -1885,6 +1885,7 @@ static bool cmdStringLengthCheck(const char* cmd_string)
 {
     const size_t cmd_length_limit = 1024;
     const size_t slotname_limit = 64;
+    const size_t double_quotes_len = 2;
     char comd[cmd_length_limit] = {'\0'};
     char* sub_cmd = NULL;
     char* rm_cmd = NULL;
@@ -1934,7 +1935,7 @@ static bool cmdStringLengthCheck(const char* cmd_string)
         return true;
     }
 
-    if (strlen(slot_name) >= slotname_limit) {
+    if (strlen(slot_name) >= slotname_limit + double_quotes_len) {
         return false;
     }
     return true;