mass removal of underscores from _BB_DIR_foo and _BB_SUID_foo

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/docs/new-applet-HOWTO.txt b/docs/new-applet-HOWTO.txt
index bb29999..6a8054d 100644
--- a/docs/new-applet-HOWTO.txt
+++ b/docs/new-applet-HOWTO.txt
@@ -161,7 +161,7 @@
 Be sure to read the top of applets.src.h before adding your applet.
 
 	/* all programs above here are alphabetically "less than" 'mu' */
-	IF_MU(APPLET(mu, _BB_DIR_USR_BIN, _BB_SUID_DROP))
+	IF_MU(APPLET(mu, BB_DIR_USR_BIN, BB_SUID_DROP))
 	/* all programs below here are alphabetically "greater than" 'mu' */