https://savannah.gnu.org/bugs/?22896

diff -up colordiff-1.0.7/cdiff.sh~ colordiff-1.0.7/cdiff.sh
--- colordiff-1.0.7/cdiff.sh~	2005-03-28 22:33:07.000000000 +0300
+++ colordiff-1.0.7/cdiff.sh	2008-04-10 22:09:47.000000000 +0300
@@ -33,10 +33,10 @@
         case `echo "$file" | perl -ne 'print lc $_'` in
         http:*|https:*|ftp:*)
             if [ -z "$CDIFF_FETCH" ]; then
-                if which wget >/dev/null 2>&1; then
-                    CDIFF_FETCH="wget -qO -"
-                elif which curl >/dev/null 2>&1; then
+                if which curl >/dev/null 2>&1; then
                     CDIFF_FETCH="curl -s"
+                elif which wget >/dev/null 2>&1; then
+                    CDIFF_FETCH="wget -e timestamping=off -qO -"
                 elif which lwp-request >/dev/null 2>&1; then
                     CDIFF_FETCH="lwp-request -m GET"
                 elif which lynx >/dev/null 2>&1; then