Fix issues in Utils.c identified by the static code analyzer.

[ibmkramamoo]

Use vsnprintf instead of vsprintf in lines 55, 73, 91

Possible memory leak:

memory leak: err = ICC_ERR_error_string(ctx, errCode, NULL);
gslogMessage("%s", err);
// Use user-provided buffer to avoid potential memory ownership issues
// This matches the pattern used in CCM.c
ICC_ERR_error_string(ctx, errCode, errBuffer);
gslogMessage("%s", errBuffer);

[Pratapchandradeo]

Hi @ibmkramamoo ,

Can I start working on this issue? It would be great if you could assign it to me.

Thanks!

[johnpeck-us-ibm]

@Pratapchandradeo We are currently working on a contributor agreement. Until we have this agreement in place and the needed process around it we are not taking outside contributions.