+VC commands
+VC commands in the `C-x v' can be used, they act on the marked
+entries, or on the current entry if nothing is marked.
+
+Search & Replace
+S - searches the marked files
+Q - does a query replace on the marked files
+M-s a C-s - does an isearch on the marked files
+M-s a C-M-s - does an isearch on the marked files
+If nothing is marked, these commands act on the current entry.
+When a directory is current or marked, the Search & Replace
+commands act on the files in those directories displayed in the
+*vc-dir* buffer.