get_node_extrainfo.sh recipe doesn't return any data when using LEVEL '0'

Hi @QuaCKeReD

Thanks for developing the script to extract detailed Node info. However, we've been trying to get the nodes info at controller level and running into issues, as it returns an empty data set.

https://github.com/Appdynamics/api-commandline-tool/blob/master/recipes/get_node_extrainfo.sh

`./get_node_extrainfo.sh -E saas-nonprod -L 1
ENVIRONMENT: saas-nonprod | LEVEL: 1 | APP_ID: | SOURCE: 0 | DEST: 0
appId,appName,nodeId,nodeName,tierName,machineName,machineOSType,machineAgentVersion,appAgentVersion,agentType,jvmVersion,appServerRestartDate`

Running the command with application Id returns expected data

`./get_node_extrainfo.sh -E saas-prod -A 4087
ENVIRONMENT: saas-prod | LEVEL: 0 | APP_ID: 4087 | SOURCE: 0 | DEST: 0
appId,appName,nodeId,nodeName,tierName,machineName,machineOSType,machineAgentVersion,appAgentVersion,agentType,jvmVersion,appServerRestartDate
4087,**-***,800829,10.10.119.11,JMS,***-***-***,Windows,false,Server Agent #20.10.0.31173 v20.10.0 GA compatible with 4.4.1.0 r29ff7e90931b7171bbfd8336067028701025517a release/20.10.0,APP_AGENT,"Java HotSpot(TM) 64-Bit Server VM 1.7.0_71 Oracle Corporation",1638685355644`

Masked some information for security purposes in the above output.

recipes/get_node_extrainfo.sh から始め、文書化されている -E オプションと -L オプションを使って空の出力を再現し、動作する -A 4087 の呼び出しと比較します。LEVEL 0 がどのように処理されるかを追跡し、既存の CSV 出力形式を維持したまま、recipe が controller レベルのノードデータを返すことを確認します。

索引モデルが issue の本文から書いたものです。