Messages if gogs build fails

src/freedombone

                     git checkout master
                     go get -u ./...
                     if [ ! "$?" = "0" ]; then
+                        echo $'Failed to get gogs'
                         exit 52792
                     fi
                     git checkout $repo_commit
                     go build
                     if [ ! "$?" = "0" ]; then
+                        echo $'Failed to build gogs'
                         exit 36226
                     fi
                     systemctl restart gogs