Improve documentation of the width of text block spans.

1 files changed, 5 insertions, 5 deletions

diff --git a/src/preproc/tbl/tbl.man b/src/preproc/tbl/tbl.man
index 99bfa059..fa0cc36f 100644
--- a/src/preproc/tbl/tbl.man
+++ b/src/preproc/tbl/tbl.man
@@ -455,11 +455,11 @@ right before the starting
 (and
 .B .ad
 after the table).
-If no `w' specifier is given, the default length of a text block (to be more
-precise, the line length used to process the text block diversion) is given
-by L\[tmu]C/(N+1), where `L' is the current line length, `C' the number of
-columns spanned by the text block, and `N' the total number of columns in
-the table.
+If `w' specifiers are not given for all columns of a text block span, the
+default length of the text block (to be more precise, the line length used
+to process the text block diversion) is computed as L\[tmu]C/(N+1), where
+`L' is the current line length, `C' the number of columns spanned by the
+text block, and `N' the total number of columns in the table.
 Note, however, that the actual diversion width as given in register
 .B \[rs]n[dl]
 is used eventually as the text block width.