use "stat -t" for getting root file sizes, "stat -c" isnt available in busybox

app/src/main/kotlin/com/simplemobiletools/filemanager/helpers/RootHelpers.kt

@@ -90,7 +90,7 @@ class RootHelpers {
             cmd += if (it.isDirectory) {
                 "echo 0;"
             } else {
-                "stat -c %s ${it.path};"
+                "stat -t ${it.path};"
             }
         }
 
@@ -103,11 +103,15 @@ class RootHelpers {
 
             override fun commandCompleted(id: Int, exitcode: Int) {
                 files.forEachIndexed { index, fileDirItem ->
-                    val size = lines[index]
+                    var line = lines[index]
+                    if (line != "0") {
+                        line = line.substring(fileDirItem.path.length).trim()
+                        val size = line.split(" ")[0]
                         if (size.areDigitsOnly()) {
                             fileDirItem.size = size.toLong()
                         }
                     }
+                }
                 callback(path, files)
                 super.commandCompleted(id, exitcode)
             }