Apply suggestion from @DmitriyMusatkin

Co-authored-by: Dmitriy Musatkin <63878209+DmitriyMusatkin@users.noreply.github.com>

Author: TingDaoK

include/aws/s3/s3_client.h

@@ -1630,7 +1630,7 @@ int aws_s3_request_metrics_get_error_code(const struct aws_s3_request_metrics *m
 AWS_S3_API
 uint32_t aws_s3_request_metrics_get_retry_attempt(const struct aws_s3_request_metrics *metrics);
 
-/* Get the memory for the request allocated from the pool or not. Cannot fail */
+/* Get whether the memory for the request was allocated from the pool. Cannot fail */
 AWS_S3_API
 bool aws_s3_request_metrics_get_memory_allocated_from_pool(const struct aws_s3_request_metrics *metrics);