correct example for Long/Lat WGS84 output in decimal degree

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@71407 15284696-431f-4ddb-bdfa-cd5b030d7da7

scripts/m.proj/m.proj.html

@@ -89,7 +89,7 @@ following example shows.
 v.out.ascii bridges | m.proj -o input=-
 
 # Long/Lat WGS84 output in decimal degree
-v.out.ascii bridges | m.proj -o input=-
+v.out.ascii bridges | m.proj -o -d input=-
 </pre></div>
 
 <h3>Reproject Long/Lat WGS84 coordinate pair to current map projection</h3>