+ @echo " - import dot files into the repository."
+ @echo " make import-all"
+ @echo " - import every uncontrolled dot files, which aren't"
+ @echo " ignored, into the repository."
+ @echo " make export FILES=<FILES>"
+ @echo " - export dot files from the repository."
+ @echo " make diff FILE=<FILE>"
+ @echo " - show diff of the dot file."