move help text from include/usage.src.h to coreutils/*.c

Signed-off-by: Pere Orga <gotrunks@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/coreutils/fold.c b/coreutils/fold.c
index 4a6429a..3fe6685 100644
--- a/coreutils/fold.c
+++ b/coreutils/fold.c
@@ -9,6 +9,16 @@
 
    Licensed under GPLv2 or later, see file LICENSE in this source tree.
 */
+
+//usage:#define fold_trivial_usage
+//usage:       "[-bs] [-w WIDTH] [FILE]..."
+//usage:#define fold_full_usage "\n\n"
+//usage:       "Wrap input lines in each FILE (or stdin), writing to stdout\n"
+//usage:     "\nOptions:"
+//usage:     "\n	-b	Count bytes rather than columns"
+//usage:     "\n	-s	Break at spaces"
+//usage:     "\n	-w	Use WIDTH columns instead of 80"
+
 #include "libbb.h"
 #include "unicode.h"