freetype.h: Avoid non-ASCII character (#50858).
diff --git a/include/freetype/freetype.h b/include/freetype/freetype.h
index 21e2d31..47e1af2 100644
--- a/include/freetype/freetype.h
+++ b/include/freetype/freetype.h
@@ -3150,7 +3150,7 @@
/* this does not translate to 50% brightness for that pixel on our */
/* sRGB and gamma~2.2 screens. Due to their non-linearity, they */
/* dwell longer in the darks and only a pixel value of about 186 */
- /* results in 50% brightness – 128 ends up too dark on both bright */
+ /* results in 50% brightness -- 128 ends up too dark on both bright */
/* and dark backgrounds. The net result is that dark text looks */
/* burnt-out, pixely and blotchy on bright background, bright text */
/* too frail on dark backgrounds, and colored text on colored */
