consistency cleanup

Author: heckj

.swift-version

@@ -1 +1 @@
-5.9
+5.8

Sources/scale-benchmark/main.swift

@@ -36,14 +36,14 @@ import Benchmark
 public let addStringBenchmarks = BenchmarkSuite(name: "add string", settings: Iterations(10000)) {
     suite in
     suite.benchmark("no capacity") {
-        var x1: String = ""
+        var x1 = ""
         for _ in 1 ... 1000 {
             x1 += "hi"
         }
     }
 
     suite.benchmark("reserved capacity", settings: Iterations(10001)) {
-        var x2: String = ""
+        var x2 = ""
         x2.reserveCapacity(2000)
         for _ in 1 ... 1000 {
             x2 += "hi"