cvs-force-dir-tagcvs-force-dir-tag is a variable defined in `
pcvs-defs.el'. Its value is
tDocumentation: If non-nil, tagging can only be applied to directories. Tagging should generally be applied a directory at a time, but sometimes it is useful to be able to tag a single file. The normal way to do that is to use `cvs-mode-force-command' so as to temporarily override the restrictions, You can customize this variable.