READY: Fix format tools

module/core/format_tools/src/format/string.rs

@@ -7,7 +7,6 @@
 /// Define a private namespace for all its items.
 mod private
 {
-
   // use crate::*;
 
   /// Returns the size of the text in `src` as a `[ width, height ]` array.
@@ -74,7 +73,7 @@ mod private
     for line in lines( text )
     {
       height += 1;
-      let line_length = line.chars().count();
+      let line_length = line.as_bytes().len();
       if line_length > width
       {
         width = line_length;