`com.fasterxml.jackson.core.JsonParseException: Unexpected character ('a' (code 97)): Expected separator ('"' (code 34)) or end-of-line` says "separator" but shows quoteChar [CsvDecoder.java](https://github.com/FasterXML/jackson-dataformats-text/blob/master/csv/src/main/java/com/fasterxml/jackson/dataformat/csv/impl/CsvDecoder.java) code line 825: `"Expected separator (%s) or end-of-line", _getCharDesc(_quoteChar)));`