Optimize the hints at the beginning, when choosing a process #1024

bin/as.sh

@@ -645,7 +645,7 @@ parse_arguments()
             return 1
         fi
 
-        echo "Found existing java process, please choose one and hit RETURN."
+        echo "Found existing java process, please choose one and input the serial number of the process, eg : 1. Then hit ENTER."
 
         index=0
         suggest=1

boot/src/main/java/com/taobao/arthas/boot/ProcessUtils.java

@@ -45,7 +45,7 @@ public class ProcessUtils {
             return -1;
         }
 
-        AnsiLog.info("Found existing java process, please choose one and hit RETURN.");
+        AnsiLog.info("Found existing java process, please choose one and input the serial number of the process, eg : 1. Then hit ENTER.");
         // print list
         int count = 1;
         for (String process : processMap.values()) {

site/src/site/sphinx/en/start-arthas.md

@@ -9,7 +9,7 @@ Start Arthas
 
 ```bash
 ➜  bin git:(develop) ✗ ./as.sh
-Found existing java process, please choose one and hit RETURN.
+Found existing java process, please choose one and input the serial number of the process, eg : 1. Then hit ENTER.
   [1]: 3088 org.jetbrains.idea.maven.server.RemoteMavenServer
 * [2]: 12872 org.apache.catalina.startup.Bootstrap
   [3]: 2455

site/src/site/sphinx/start-arthas.md

@@ -9,7 +9,7 @@
 
 ```bash
 ➜  bin git:(develop) ✗ ./as.sh
-Found existing java process, please choose one and hit RETURN.
+Found existing java process, please choose one and input the serial number of the process, eg: 1 . Then hit ENTER.
   [1]: 3088 org.jetbrains.idea.maven.server.RemoteMavenServer
 * [2]: 12872 org.apache.catalina.startup.Bootstrap
   [3]: 2455