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

Signed-off-by: Pere Orga <gotrunks@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

archival/bzip2.c

@@ -7,6 +7,16 @@
  * about bzip2 library code.
  */
 
+//usage:#define bzip2_trivial_usage
+//usage:       "[OPTIONS] [FILE]..."
+//usage:#define bzip2_full_usage "\n\n"
+//usage:       "Compress FILEs (or stdin) with bzip2 algorithm\n"
+//usage:     "\nOptions:"
+//usage:     "\n	-1..9	Compression level"
+//usage:     "\n	-d	Decompress"
+//usage:     "\n	-c	Write to stdout"
+//usage:     "\n	-f	Force"
+
 #include "libbb.h"
 #include "archive.h"