fix: use backtick formatting for Some/None in SHOW ALL VERBOSE expected output

Author: kszucs

datafusion/sqllogictest/test_files/information_schema.slt

@@ -401,7 +401,7 @@ datafusion.execution.parquet.skip_arrow_metadata false (writing) Skip encoding t
 datafusion.execution.parquet.skip_metadata true (reading) If true, the parquet reader skip the optional embedded metadata that may be in the file Schema. This setting can help avoid schema conflicts when querying multiple parquet files with schemas containing compatible types but different metadata
 datafusion.execution.parquet.statistics_enabled page (writing) Sets if statistics are enabled for any column Valid values are: "none", "chunk", and "page" These values are not case sensitive. If NULL, uses default parquet writer setting
 datafusion.execution.parquet.statistics_truncate_length 64 (writing) Sets statistics truncate length. If NULL, uses default parquet writer setting
-datafusion.execution.parquet.use_content_defined_chunking NULL (writing) EXPERIMENTAL: Enable content-defined chunking (CDC) when writing parquet files. When Some, CDC is enabled with the given options; when None (the default), CDC is disabled. When CDC is enabled, parallel writing is automatically disabled since the chunker state must persist across row groups.
+datafusion.execution.parquet.use_content_defined_chunking NULL (writing) EXPERIMENTAL: Enable content-defined chunking (CDC) when writing parquet files. When `Some`, CDC is enabled with the given options; when `None` (the default), CDC is disabled. When CDC is enabled, parallel writing is automatically disabled since the chunker state must persist across row groups.
 datafusion.execution.parquet.write_batch_size 1024 (writing) Sets write_batch_size in rows
 datafusion.execution.parquet.writer_version 1.0 (writing) Sets parquet writer version valid values are "1.0" and "2.0"
 datafusion.execution.perfect_hash_join_min_key_density 0.15 The minimum required density of join keys on the build side to consider a perfect hash join (see `HashJoinExec` for more details). Density is calculated as: `(number of rows) / (max_key - min_key + 1)`. A perfect hash join may be used if the actual key density > this value. Currently only supports cases where build_side.num_rows() < u32::MAX. Support for build_side.num_rows() >= u32::MAX will be added in the future.