fix arg

Author: alamb

benchmarks/src/clickbench.rs

@@ -57,7 +57,7 @@ pub struct RunOpt {
     /// Path to queries.sql (single file)
     #[structopt(
         parse(from_os_str),
-        short = "qp",
+        short = "r",
         long = "queries_path",
         default_value = "benchmarks/queries/clickbench/queries.sql"
     )]