Use more proper wording during asking user install packages.

Bug: 172121334
Test: acloud-dev setup --host --force
Change-Id: I1cae9c34c6032c2dc8597412670a24a213e37c24
diff --git a/setup/host_setup_runner.py b/setup/host_setup_runner.py
index c2bb8e8..fcc5b74 100644
--- a/setup/host_setup_runner.py
+++ b/setup/host_setup_runner.py
@@ -83,9 +83,8 @@
              if not setup_common.PackageInstalled(pkg)])
 
         if not utils.GetUserAnswerYes("\nStart to install package(s):\n%s"
-                                      "\nPress 'y' to continue or anything "
-                                      "else to do it myself and run acloud "
-                                      "again[y/N]: " % cmd):
+                                      "\nEnter 'y' to continue, otherwise N or "
+                                      "enter to exit: " % cmd):
             sys.exit(constants.EXIT_BY_USER)
 
         setup_common.CheckCmdOutput(_UPDATE_APT_GET_CMD, shell=True)
@@ -145,9 +144,8 @@
                         for sub_cmd in _INSTALL_CUTTLEFISH_COMMOM_CMD)
 
         if not utils.GetUserAnswerYes("\nStart to install cuttlefish-common :\n%s"
-                                      "\nPress 'y' to continue or anything "
-                                      "else to do it myself and run acloud "
-                                      "again[y/N]: " % cmd):
+                                      "\nEnter 'y' to continue, otherwise N or "
+                                      "enter to exit: " % cmd):
             sys.exit(constants.EXIT_BY_USER)
         try:
             setup_common.CheckCmdOutput(cmd, shell=True)
@@ -227,6 +225,6 @@
             True if user answer yes.
         """
         answer_client = utils.InteractWithQuestion(
-            "\nPress 'y' to continue or anything else to do it myself[y/N]: ",
+            "\nEnter 'y' to continue, otherwise N or enter to exit: ",
             utils.TextColors.WARNING)
         return answer_client in constants.USER_ANSWER_YES