move help text from include/usage.src.h to debianutils/*.c e2fsprogs/*.c editors/*.c loginutils/*.c mailutils/*.c

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

loginutils/addgroup.c

@@ -9,6 +9,15 @@
  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  *
  */
+
+//usage:#define addgroup_trivial_usage
+//usage:       "[-g GID] " IF_FEATURE_ADDUSER_TO_GROUP("[USER] ") "GROUP"
+//usage:#define addgroup_full_usage "\n\n"
+//usage:       "Add a group " IF_FEATURE_ADDUSER_TO_GROUP("or add a user to a group") "\n"
+//usage:     "\nOptions:"
+//usage:     "\n	-g GID	Group id"
+//usage:     "\n	-S	Create a system group"
+
 #include "libbb.h"
 
 #if CONFIG_LAST_SYSTEM_ID < CONFIG_FIRST_SYSTEM_ID