Update comment to reference proper character

The unicode character comment has been updated to correctly reference
the character instead of commenting on the variable that might be that
character.

font/src/lib.rs

@@ -60,6 +60,7 @@ pub use darwin::*;
 
 /// Character used for the underline cursor
 #[cfg(not(target_os = "macos"))]
+// This is part of the private use area and should not conflict with any font
 pub const UNDERLINE_CURSOR_CHAR: char = '􊏢';
 #[cfg(target_os = "macos")]
 pub const UNDERLINE_CURSOR_CHAR: char = '▁';

src/term/mod.rs

@@ -208,7 +208,6 @@ impl<'a> RenderableCellsIter<'a> {
         });
 
         let cursor_color = self.text_cursor_color(&cursor_cell);
-        // This is part of the private use area and shouldn't be used by any font
         cursor_cell.c = font::UNDERLINE_CURSOR_CHAR;
         cursor_cell.fg = cursor_color;
         self.cursor_cells.push_back(Indexed {