check the package exists before updating it, and reduce the use of user input
check the package exists before updating it, and reduce the use of user input

outlandishideas/wpackagist,wpsvse/wpackagist,wpsvse/wpackagist,outlandishideas/wpackagist,wpsvse/wpackagist,outlandishideas/wpackagist,wpsvse/wpackagist