[TD-2439]<fix> taos --help modify

src/kit/shell/src/shellLinux.c

@@ -33,7 +33,7 @@ const char *argp_program_bug_address = "<support@taosdata.com>";
 static char doc[] = "";
 static char args_doc[] = "";
 static struct argp_option options[] = {
-  {"host",       'h', "HOST",       0,                   "TDengine server IP address to connect. The default host is localhost."},
+  {"host",       'h', "HOST",       0,                   "TDengine server FQDN to connect. The default host is localhost."},
   {"password",   'p', "PASSWORD",   OPTION_ARG_OPTIONAL, "The password to use when connecting to the server."},
   {"port",       'P', "PORT",       0,                   "The TCP/IP port number to use for the connection."},
   {"user",       'u', "USER",       0,                   "The user name to use when connecting to the server."},

src/kit/shell/src/shellWindows.c

@@ -24,7 +24,7 @@ void printHelp() {
   printf("taos shell is used to test the TDengine database\n");
 
   printf("%s%s\n", indent, "-h");
-  printf("%s%s%s\n", indent, indent, "TDengine server IP address to connect. The default host is localhost.");
+  printf("%s%s%s\n", indent, indent, "TDengine server FQDN to connect. The default host is localhost.");
   printf("%s%s\n", indent, "-p");
   printf("%s%s%s\n", indent, indent, "The password to use when connecting to the server.");
   printf("%s%s\n", indent, "-P");