* doc/emacs/package.texi (Fetching Package Sources): Mark code as
code.
@item :make
A string or list of strings providing the target or targets defined in
the repository Makefile which should run before building the Info
-file. Only takes effect when package-vc-allow-side-effects is non-nil.
+file. Only takes effect when @code{package-vc-allow-side-effects} is
+non-nil.
@item :shell-command
A string providing the shell command to run before building the Info
-file. Only takes effect when package-vc-allow-side-effects is non-nil.
+file. Only takes effect when @code{package-vc-allow-side-effects} is
+non-@code{nil}.
@item :vc-backend
A symbol naming the VC backend to use for downloading a copy of the