Added error message when cache file points to a directory#29

Lakitna merged 1 commit intomainLakitna/robotframework-cache:mainfrom

Better-error-message-when-cache-file-is-not-a-valid-file-pathLakitna/robotframework-cache:Better-error-message-when-cache-file-is-not-a-valid-file-pathCopy head branch name to clipboard