[docker/cli] Wrong ANSI font representation

### ROOT CAUSE The issue arises because the warning message uses ANSI escape codes for bold formatting (`\033[1m`), but these codes are not being interpreted correctly by the terminal or shell in some environments. This can happen if the terminal does not support ANSI escape codes, or if the escape codes are being passed through a program that does not handle them properly. Additionally, the warning might be printed as literal text if the output is redirected or captured in a way that strips or misinterprets the escape sequences. ### CODE FIX To ensure the warning text is displayed in bold correctly in all POSIX-compliant shells, we should avoid using ANSI escape codes for formatting and instead use a shell-compatible approach. However, note that POSIX-compliant shells do not universally support ANSI escape codes, so the warning should be formatted without relying on terminal escape sequences. Here's the fix for the warning message in the code: ```diff - fmt.Printf("\033[1mWARNING\033[0m: you are not in a container.\n") + fmt.Println("WARNING: you are not in a container.") ``` This change removes the ANSI escape codes and simply prints the warning text in plain text. While this loses the bold formatting, it ensures compatibility with all POSIX-compliant shells. If bold formatting is still required, consider alternative methods such as using shell-specific formatting (e.g., `echo -e` with `sed` to convert escape codes) or environment-specific configuration.