Comma in csv output not wrapped in double quotes

[pxn]

When command output field text contains , it breaks csv structure. Those fields should be enclosed in "".

output in JSON:

() cmk > list virtualmachines filter=name,displayname,instancename {
"count": 1,
"virtualmachine": [
{
"displayname": "DuVPC-AD,WSUS, DNS",
"instancename": "i-211-1313-VM",
"name": "MS-DC-PRI"
}
]
}`

same VM output in csv:
() cmk > list virtualmachines filter=name,displayname,instancename
name,displayname,instancename
MS-DC-PRI,DuVPC-AD,WSUS, DNS,i-211-1313-VM

expected csv output:
() cmk > list virtualmachines filter=name,displayname,instancename
name,displayname,instancename
MS-DC-PRI,"DuVPC-AD,WSUS, DNS",i-211-1313-VM

CloudMonkey 6.2.0 release.

[DaanHoogland]

fixed in #107