[klibc] klcc.1: document -nostdinc

Needed it to have a chance making efilinux compile,
due to a funny exit() redefinition.

Signed-off-by: maximilian attems <max@stro.at>
diff --git a/klcc/klcc.1 b/klcc/klcc.1
index e91a74c..0186931 100644
--- a/klcc/klcc.1
+++ b/klcc/klcc.1
@@ -71,6 +71,9 @@
 on the version of
 .B gcc
 used.
+.TP
+.B \-nostdinc
+allows to turn off klibc include files.
 .PP
 Use the
 .B \-shared