re PR fortran/61126 (gfortran does not enable -Wununused-parameter with -Wextra)

2014-06-18  Tobias Burnus  <burnus@net-b.de>

        PR fortran/61126
        * invoke.texi (-Wunused-parameter): Make clearer when
        -Wextra implies this option.

From-SVN: r211767

gcc/fortran/ChangeLog

+2014-06-18  Tobias Burnus  <burnus@net-b.de>
+
+	PR fortran/61126
+	* invoke.texi (-Wunused-parameter): Make clearer when
+	-Wextra implies this option.
+
 2014-06-18  Manuel López-Ibáñez  <manu@gcc.gnu.org>
 
 	PR fortran/61126

gcc/fortran/invoke.texi

@@ -911,7 +911,8 @@ Contrary to @command{gcc}'s meaning of @option{-Wunused-parameter},
 @command{gfortran}'s implementation of this option does not warn
 about unused dummy arguments (see @option{-Wunused-dummy-argument}),
 but about unused @code{PARAMETER} values. @option{-Wunused-parameter}
-is not included in @option{-Wall} but is implied by @option{-Wall -Wextra}.
+is implied by @option{-Wextra} if also @option{-Wunused} or
+@option{-Wall} is used.
 
 @item -Walign-commons
 @opindex @code{Walign-commons}