fix(text): Fix truncated text issue in cells with rowspan

Fixes ietf-tools#1155

xml2rfc/writers/text.py

@@ -4179,7 +4179,7 @@ def set_colwidths(cells, rows, cols):
                 k, l = cell.origin
                 hspan = cell.rowspan+k-i if cell.rowspan else minspan
                 lines = len(cell.wrapped) if cell.wrapped else 0
-                if hspan == minspan and lines > maxlines:
+                if lines > maxlines:
                     maxlines = lines
             for j in range(cols):
                 cells[i][j].lines = maxlines