tracks/swift/exercises/transpose/Sources/TransposeExample.swift in trackler-2.1.0.53 vs tracks/swift/exercises/transpose/Sources/TransposeExample.swift in trackler-2.1.0.54

@@ -13,10 +13,10 @@
         for i in 0..<maxLength {
             for line in input {
                 if let start = line.index(line.startIndex, offsetBy: i, limitedBy: line.endIndex),
                     let end = line.index(start, offsetBy: 1, limitedBy: line.endIndex) {
                     let character = line[start..<end]
-                    result[i].append(character)
+                    result[i].append(String(character))
                 } else {
                     result[i].append(" ")
                 }
             }
         }