Fix unixbench.

unixbench test failed after stateful partition introduced into the image. This is because it has hard coded reference to /usr/bin/time which now is moved to /usr/local/bin.

Review URL: http://codereview.chromium.org/2001005
diff --git a/client/tests/unixbench/unixbench.patch b/client/tests/unixbench/unixbench.patch
index a6b567a..e3aee89 100644
--- a/client/tests/unixbench/unixbench.patch
+++ b/client/tests/unixbench/unixbench.patch
@@ -1,6 +1,41 @@
+diff -urN src/Run newsrc/Run
+--- src/Run	2006-05-17 14:24:46.000000000 -0700
++++ newsrc/Run	2010-05-07 19:02:43.000000000 -0700
+@@ -53,7 +53,7 @@
+ #  You will need ...
+ #	awk cat cc chmod comm cp date dc df echo ed expr
+ #	kill ls make mkdir rm sed test time touch tty umask who
+-#       AND /usr/bin/time
++#       AND time
+ #  to generate result indexes, you will also need ...
+ #       join
+ #
+@@ -66,7 +66,7 @@
+ #
+ if [ -z "${FLAVOR-}" ]; then
+ 	# determine flavor of UNIX from number of lines generated by "time"
+-	Fcount=`/usr/bin/time date 2>&1 | wc -l | sed 's/ //g'`
++	Fcount=`time date 2>&1 | wc -l | sed 's/ //g'`
+ 	case "$Fcount" in
+ 	2) FLAVOR=BSD ;;
+ 	3) FLAVOR=Linux ;;
+@@ -468,10 +468,10 @@
+ 	  ############ THE BENCH IS TIMED ##############
+           if [ -z "${stdin-}" ]; then
+ 		# without redirected stdin
+-		/usr/bin/time $prog $opt $bg 2>>$TMPTIMES >>$stdout
++		time $prog $opt $bg 2>>$TMPTIMES >>$stdout
+           else
+ 		# with redirected stdin
+-		/usr/bin/time $prog $opt $bg <$stdin 2>>$TMPTIMES >>$stdout
++		time $prog $opt $bg <$stdin 2>>$TMPTIMES >>$stdout
+           fi 
+ 	  ###############################################
+ 	  cd $pwd                    # move back home
+diff -urN src/src/execl.c newsrc/src/execl.c
 --- src/src/execl.c	1999-07-28 14:46:58.000000000 -0700
-+++ newsrc/src/execl.c	2008-02-27 09:23:17.372306000 -0800
-@@ -88,7 +88,7 @@ char	*argv[];
++++ newsrc/src/execl.c	2010-05-07 19:01:38.000000000 -0700
+@@ -88,7 +88,7 @@
  		fprintf(stderr, "%lu loops\n", iter);
  		exit(0);
  		}