buildroot: remove trailing spaces

for i in `find -name 'Config*' -o -name 'Makefile*' -o -name '*.mk'`;
do
	sed -i 's/ \+$//' $i;
done

package/irda-utils/Config.in

@@ -37,7 +37,7 @@ config IRDA_TEKRAM
 config IRDA_SMCINIT
 	bool "support toshiba-laptops"
 	help
-		Some Toshiba Laptops have buggy BIOSes which didn't initialize 
+		Some Toshiba Laptops have buggy BIOSes which didn't initialize
 		Irda. This may help those.
 	
 endif