Minor testsuite behaviour updates.

test/check-build

@@ -40,7 +40,7 @@ fi
 failure=0
 for dir in src test; do
   (cd $(dirname "$0")/../$dir
-  for x in $(make echo-sources); do
+  for x in $(make -s echo-sources); do
     if grep '[[:space:]]$' "$x" >/dev/null 2>&1; then
       echo "error: $dir/$x contains trailing spaces"
       failure=1

test/check-zzuf-r-ratio

@@ -23,17 +23,20 @@ checkflip()
     rmin=-1
     rtot=0
     new_test "$mib MiB of zeroes, ratio $r"
+    echo " expecting $expect"
+    printf " got"
     for x in 0 1 2 3 4; do
         ret=`dd if=/dev/zero bs=1048576 count=$mib 2>/dev/null | $ZZUF -s $s2 -r $r | "$ZZERO"`
         if [ "$rmax" = -1 -o "$ret" -gt "$rmax" ]; then rmax=$ret; fi
         if [ "$rmin" = -1 -o "$ret" -lt "$rmin" ]; then rmin=$ret; fi
         rtot=`expr $rtot + $ret || true`
-        echo " try $x .......... $ret"
+        printf " $ret"
         s2=`expr $s2 + 1`
     done
+    echo ""
     rmean=`expr '(' $rtot + 2 ')' / 5 || true`
     delta=`expr $rmean - $expect || true`
-    printf " expected $expect min/avg/max $rmin/$rmean/$rmax .........."
+    printf " min/avg/max $rmin/$rmean/$rmax .........."
     if [ "$delta" -gt -5 -a "$delta" -lt 5 ]; then
         pass_test " ok"
     elif [ $(($rmean * 8)) -lt $(($expect * 7)) \