Fix directory iteration issues

internal/config/v1.go

@@ -56,7 +56,7 @@ func (z *ZurgConfigV1) GetVersion() string {
 }
 
 func (z *ZurgConfigV1) GetDirectories() []string {
-	rootDirectories := make([]string, len(z.Directories))
+	rootDirectories := []string{}
 	for directory := range z.Directories {
 		rootDirectories = append(rootDirectories, directory)
 	}
@@ -531,7 +531,7 @@ func checkArithmeticSequenceInFilenames(files []string) bool {
 					continue
 				}
 			}
-			numList := make([]int, 0, len(numSet))
+			numList := []int{}
 			for num := range numSet {
 				numList = append(numList, num)
 			}