mass removal of underscores from _BB_DIR_foo and _BB_SUID_foo

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/procps/pstree.c b/procps/pstree.c
index 180d093..ddf5dba 100644
--- a/procps/pstree.c
+++ b/procps/pstree.c
@@ -16,7 +16,7 @@
 //config:	help
 //config:	  Display a tree of processes.
 
-//applet:IF_PSTREE(APPLET(pstree, _BB_DIR_USR_BIN, _BB_SUID_DROP))
+//applet:IF_PSTREE(APPLET(pstree, BB_DIR_USR_BIN, BB_SUID_DROP))
 
 //kbuild:lib-$(CONFIG_PSTREE) += pstree.o