disable cmd output non-zero return code

Author: CMGS

README.md

@@ -50,7 +50,7 @@ Download pre-built binaries from [GitHub Releases](https://github.com/cocoonstac
 
 ```bash
 # Linux amd64
-curl -fsSL -o cocoon.tar.gz https://github.com/cocoonstack/cocoon/releases/download/v0.3.6/cocoon_0.3.6_Linux_x86_64.tar.gz
+curl -fsSL -o cocoon.tar.gz https://github.com/cocoonstack/cocoon/releases/download/v0.3.9/cocoon_0.3.9_Linux_x86_64.tar.gz
 tar -xzf cocoon.tar.gz
 install -m 0755 cocoon /usr/local/bin/
 

cmd/vm/exec.go

@@ -74,6 +74,8 @@ func (h Handler) Exec(cmd *cobra.Command, args []string) error {
 		return fmt.Errorf("exec: %w", err)
 	}
 	if code != 0 {
+		// Suppress cobra's "Error: exit code N" so callers (e.g. vk-cocoon) only see the child's own output + exit code.
+		cmd.SilenceErrors = true
 		return &ExecExitError{Code: code}
 	}
 	return nil