parser: space between thumbnail and text for r.colors (colortable) and d.barscale

It looks better and the text can be copied
after double click in Firefox (before image
or its alt text was copied also).


git-svn-id: https://svn.osgeo.org/grass/grass/trunk@68546 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/gis/parser_html.c

@@ -259,7 +259,7 @@ void G__usage_html(void)
                             
                             if (thumbnails)
                                 fprintf(stdout, "<img width=\"80\" height=\"12\" "
-                                        "src=\"%s/%s.png\" alt=\"%s\">",
+                                        "src=\"%s/%s.png\" alt=\"%s\"> ",
                                         thumbnails, opt->opts[i], opt->opts[i]);
                         }
 			print_escaped_for_html(stdout, opt->opts[i]);