feat(RES-34): Fix plist font filename (#14)

Reviewed-on: #14

Sources/ResgenSwift/Generate/Runnable/StringsConfiguration+Runnable.swift

@@ -8,9 +8,10 @@
 import Foundation
 
 extension StringsConfiguration: Runnable {
+
     func run(projectDirectory: String, force: Bool) {
         var args = [String]()
-        
+
         if force {
             args += ["-f"]
         }
@@ -30,21 +31,21 @@ extension StringsConfiguration: Runnable {
             "--xc-strings",
             "\(xcStringsOptions)"
         ]
-        
-        if let extensionName = extensionName {
+
+        if let extensionName {
             args += [
                 "--extension-name",
                 extensionName
             ]
         }
-        
-        if let extensionSuffix = extensionSuffix {
+
+        if let extensionSuffix {
             args += [
                 "--extension-suffix",
                 extensionSuffix
             ]
         }
-        
+
         Stringium.main(args)
     }
 }