1 files changed, 4 insertions, 3 deletions

diff --git a/contrib/cvs/diff/system.h b/contrib/cvs/diff/system.h
index 7812b7675926f..76bc1631feec9 100644
--- a/contrib/cvs/diff/system.h
+++ b/contrib/cvs/diff/system.h
@@ -13,9 +13,7 @@ but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with GNU DIFF; see the file COPYING.  If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+*/
 
 /* We must define `volatile' and `const' first (the latter inside config.h),
    so that they're used consistently in all system includes.  */
@@ -29,6 +27,9 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #include <sys/types.h>
 #include <sys/stat.h>
 
+/* Note that PARAMS is just internal to the diff library; diffrun.h
+   has its own mechanism, which will hopefully be less likely to
+   conflict with the library's caller's namespace.  */
 #if __STDC__
 #define PARAMS(args) args
 #define VOID void