PDF Layout

Prevent lines overlapping the right hand margin, this occurred for
references in the "See also:" section, it is prevented by placing
references on their own lines. Two example programs overlapped the
right hand margin: fixed by adjusting the position and of the comments.
Some tables had overlapping colums: the column widths were adjusted
accordingly.

From-SVN: r274857

gcc/fortran/ChangeLog

+2019-08-23  Mark Eggleston  <mark.eggleston@codethink.com>
+
+	* intrinsics.text: References in 'See also:' are now on
+	separate lines to ensure that they always fit in the margins of
+	a PDF page.  The column widths of tables have been adjusted
+	where necessary to prevent overlapping text.  All program
+	examples now fit within the margins of a PDF page.
+
 2019-08-23  Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/91283