@item
@var{contents} is a vector with the same number of elements as
@code{tabulated-list-format}. Each vector element is either a string,
-which is inserted into the buffer as-is, an image descriptor, which is
-used to insert an image (@pxref{Image Descriptors}), or a list
-@code{(@var{label} . @var{properties})}, which means to insert a text
-button by calling @code{insert-text-button} with @var{label} and
+which is inserted into the buffer as-is; an image descriptor, which is
+used to insert an image (@pxref{Image Descriptors}); or a list
+@w{@code{(@var{label} . @var{properties})}}, which means to insert a
+text button by calling @code{insert-text-button} with @var{label} and
@var{properties} as arguments (@pxref{Making Buttons}).
There should be no newlines in any of these strings.