gettext: fix whitespace

Signed-off-by: Dirk Neukirchen <[email protected]>

package/libs/gettext/Makefile

@@ -27,7 +27,7 @@ endef
 define Build/Prepare
 	$(INSTALL_DIR) $(PKG_BUILD_DIR)
 	$(CP) ./src/* $(PKG_BUILD_DIR)/
-endef      
+endef
 
 define Build/Configure
 endef