@findex vc-dir-mark
@findex vc-dir-mark-all-files
While in the VC Directory buffer, all the files that you mark with
-@kbd{m} (@code{vc-dir-mark}) or @kbd{M} (@code{vc-dir-mark}) are in
-the current VC fileset. If you mark a directory entry with @kbd{m},
-all the listed files in that directory tree are in the current VC
-fileset. The files and directories that belong to the current VC
-fileset are indicated with a @samp{*} character in the VC Directory
-buffer, next to their VC status. In this way, you can set up a
-multi-file VC fileset to be acted on by VC commands like @w{@kbd{C-x v
-v}} (@pxref{Basic VC Editing}), @w{@kbd{C-x v =}} (@pxref{Old
-Revisions}), and @w{@kbd{C-x v u}} (@pxref{VC Undo}).
+@kbd{m} (@code{vc-dir-mark}) or @kbd{M} (@code{vc-dir-mark-all-files})
+are in the current VC fileset. If you mark a directory entry with
+@kbd{m}, all the listed files in that directory tree are in the
+current VC fileset. The files and directories that belong to the
+current VC fileset are indicated with a @samp{*} character in the VC
+Directory buffer, next to their VC status. In this way, you can set
+up a multi-file VC fileset to be acted on by VC commands like
+@w{@kbd{C-x v v}} (@pxref{Basic VC Editing}), @w{@kbd{C-x v =}}
+(@pxref{Old Revisions}), and @w{@kbd{C-x v u}} (@pxref{VC Undo}).
The VC Directory buffer also defines some single-key shortcuts for
VC commands with the @kbd{C-x v} prefix: @kbd{=}, @kbd{+}, @kbd{l},
@findex xref-find-definitions
@kbd{M-.}@: (@code{xref-find-definitions}) shows the definitions of
the identifier at point. With a prefix argument, or if there's no
-valid identifier at point, it prompts for the identifier. If the
+identifier at point, it prompts for the identifier. If the
identifier has only one definition, the command jumps to it. If the
identifier has more than one possible definition (e.g., in an
object-oriented language, or if there's a function and a variable by
@kindex M-?
@findex xref-find-references
@kbd{M-?} finds all the references for the identifier at point. If
-there's no valid identifier at point, or when invoked with a prefix
+there's no identifier at point, or when invoked with a prefix
argument, the command prompts for the identifier, with completion. It
then presents a @file{*xref*} buffer with all the references to the
identifier, showing the file name and the line where the identifier is