Split miscutils/Config.src items into miscutils/*.c files

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

miscutils/ttysize.c

@@ -9,6 +9,14 @@
  *
  * Licensed under GPLv2, see file LICENSE in this source tree.
  */
+//config:config TTYSIZE
+//config:	bool "ttysize"
+//config:	default y
+//config:	help
+//config:	  A replacement for "stty size". Unlike stty, can report only width,
+//config:	  only height, or both, in any order. It also does not complain on
+//config:	  error, but returns default 80x24.
+//config:	  Usage in shell scripts: width=`ttysize w`.
 
 //usage:#define ttysize_trivial_usage
 //usage:       "[w] [h]"