[FR] Support \n and spaces in the query

[anch665]

Some large requests look very ugly. In addition, grafana also independently changes them when you press the pencil button.
For this reason, we use wrapping and formatting queries.
but carbonapi can't process them when it sees the \n character in the request.
Can this be fixed?

aliasSub(
  transformNull(
    exclude(
	  asPercent(
            group(groupByNodes(collectd.PROD.rtmsasrtdm0*.NginxByPerl.host.*.port.5111.gauge.channelid.*.requesttype.*.login.*.up.*.status.404.req, 'sumSeries', 10, 12)),
            group(groupByNodes(collectd.PROD.rtmsasrtdm0*.NginxByPerl.host.*.port.5111.gauge.channelid.*.requesttype.*.login.*.up.*.status.*.req, 'sumSeries', 10, 12)),
          0),
    'MISSING'),
  0),
'.+asPercent\(([\w]+\.[\w]+).+', '404.\1')

error log
2022-12-14T07:33:53.302+0300 ERROR access request failed {"data": {"handler":"render","carbonapi_uuid":"8d39f5be-4958-473c-9ce3-d8c25a44803c","url":"/render","peer_ip":"10.72.4.76","host":"rtmsasanalys01:8087","format":"json","use_cache":true,"targets":["aliasSub(\n transformNull(\n exclude(\n\t asPercent(\n group(groupByNodes(collectd.PROD.rtmsasrtdm0*.NginxByPerl.host.*.port.5111.gauge.channelid.*.requesttype.*.login.*.up.*.status.404.req, 'sumSeries', 10, 12)),\n group(groupByNodes(collectd.PROD.rtmsasrtdm0*.NginxByPerl.host.*.port.5111.gauge.channelid.*.requesttype.*.login.*.up.*.status.*.req, 'sumSeries', 10, 12)),\n 0),\n 'MISSING'),\n 0),\n'.+asPercent\\(([\\w]+\\.[\\w]+).+', '404.\\1')"],"cache_timeout":60,"runtime":0.000736943,"http_code":400,"reason":"Bad Request\n\nTarget : aliasSub(\n transformNull(\n exclude(\n\t asPercent(\n group(groupByNodes(collectd.PROD.rtmsasrtdm0*.NginxByPerl.host.*.port.5111.gauge.channelid.*.requesttype.*.login.*.up.*.status.404.req, 'sumSeries', 10, 12)),\n group(groupByNodes(collectd.PROD.rtmsasrtdm0*.NginxByPerl.host.*.port.5111.gauge.channelid.*.requesttype.*.login.*.up.*.status.*.req, 'sumSeries', 10, 12)),\n 0),\n 'MISSING'),\n 0),\n'.+asPercent\\(([\\w]+\\.[\\w]+).+', '404.\\1')\nError : missing argument\nParsed so far : aliasSub(\nCould not parse : \n transformNull(\n exclude(\n\t asPercent(\n group(groupByNodes(collectd.PROD.rtmsasrtdm0*.NginxByPerl.host.*.port.5111.gauge.channelid.*.requesttype.*.login.*.up.*.status.404.req, 'sumSeries', 10, 12)),\n group(groupByNodes(collectd.PROD.rtmsasrtdm0*.NginxByPerl.host.*.port.5111.gauge.channelid.*.requesttype.*.login.*.up.*.status.*.req, 'sumSeries', 10, 12)),\n 0),\n 'MISSING'),\n 0),\n'.+asPercent\\(([\\w]+\\.[\\w]+).+', '404.\\1')\n","from":1670970832,"until":1670992434,"from_raw":"1670970832","until_raw":"1670992434","uri":"/render","from_cache":false,"used_backend_cache":false,"request_headers":{"X-Dashboard-Id":"143","X-Grafana-Org-Id":"1","X-Panel-Id":"92"}}}