Fix partName

Author: anton-knyazev

extensionslib/src/main/java/com/omega_r/libs/extensions/string/StringExtensions.kt

@@ -37,22 +37,22 @@ fun String.fromHtml(): Spanned {
     }
 }
 
-fun String?.addPartName(partName: String?): String? {
+fun String?.addPartName(partName: String?, separator: String = " "): String? {
     var result = this
     if (!partName.isNullOrBlank()) {
         if (!result.isNullOrEmpty()) {
-            result += " $partName"
+            result += "$separator$partName"
         } else {
             result = partName
         }
     }
     return result
 }
 
-fun String?.addPartNames(vararg partNames: String?): String? {
+fun String?.addPartNames(vararg partNames: String?, separator: String = " "): String? {
     var result: String? = this
     for (partName in partNames) {
-        result = result.addPartName(partName)
+        result = result.addPartName(partName, separator)
     }
     return result
 }