testS: poll more eagerly for the daemon start/stop

Polling every 1 second means that even the simplest test takes at least
2 seconds. We can reasonably poll 1/10 of that to make things much
  quicker (esp. given that most of the time 0.1s is enough for the
  daemon to be started or stopped)

(cherry picked from commit 9c470cb969)

tests/common.sh.in

@@ -92,9 +92,9 @@ startDaemon() {
     rm -f $NIX_DAEMON_SOCKET_PATH
     PATH=$DAEMON_PATH nix-daemon &
     pidDaemon=$!
-    for ((i = 0; i < 30; i++)); do
+    for ((i = 0; i < 300; i++)); do
         if [[ -S $NIX_DAEMON_SOCKET_PATH ]]; then break; fi
-        sleep 1
+        sleep 0.1
     done
     trap "killDaemon" EXIT
     # Save for if daemon is killed
@@ -104,9 +104,9 @@ startDaemon() {
 
 killDaemon() {
     kill $pidDaemon
-    for i in {0.10}; do
+    for i in {0..100}; do
         kill -0 $pidDaemon || break
-        sleep 1
+        sleep 0.1
     done
     kill -9 $pidDaemon || true
     wait $pidDaemon || true