libcap: fix to not install capfaq outside of the sandbox when cross-compiling

base/libcap/libcap.conf

@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../libcap/libcap.conf
-# Copyright (C) 2011 The OpenSDE Project
+# Copyright (C) 2011 - 2013 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 # Copyright (C) 1998 - 2004 Clifford Wolf
 #
@@ -15,7 +15,7 @@
 # --- SDE-COPYRIGHT-NOTE-END ---
 
 var_append makeinstopt " " "LIBDIR=$root/$libdir"
-hook_add postdoc 5 "rm -rvf $docdir/old; cp -v `match_source_file -p capfaq` $docdir/"
+hook_add postdoc 5 "rm -rvf $root$docdir/old; cp -v `match_source_file -p capfaq` $root$docdir/"
 
 # When installing setcap, set its inheritable bit to be able to place
 # capabilities on files. It can be used in conjunction with pam_cap