Integer overflows in tool_operate.c at line 1541

## Summary: [add summary of the vulnerability] In tool_operate.c at line 1541, if --retry-delay>18446744073709552, config->retry_delay*1000 > 2^64 results in integer overflows, on 64 bit architectures; ## Steps To Reproduce: [add details for how we can reproduce the issue] 1. [add step] Tool_operate.c add a "printf" at line 1538 as following: printf("config->retry_delay*1000L = %ld\n", config->retry_delay*1000L); 2. [add step] make 1. [add step] run command: ./src/curl --retry-delay 18446744073709552 -v 192.168.222.1:8080/test.html output: config->retry_delay*1000L = 384 ## Supporting Material/References: [list any additional material (e.g. screenshots, logs, etc.)] * [attachment / reference] ## Impact The flaw exists on 32&64 bit architectures, it results in retry-delay is invalid.