package/tekui: replace utf-8 space by ascii character

Replace utf-8 NO-BREAK-SPACE (c2 a0) in comment line by simple
ascii space character.

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/tekui/tekui.mk

@@ -11,7 +11,7 @@ TEKUI_LICENSE = MIT
 TEKUI_LICENSE_FILES = COPYRIGHT
 TEKUI_DEPENDENCIES = freetype luainterpreter
 
-# Package does not build in parallel due to improper make rules
+# Package does not build in parallel due to improper make rules
 TEKUI_MAKE = $(MAKE1)
 
 TEKUI_MAKE_OPTS = \