document --libfiles


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28702 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/CommandGuide/llvm-config.pod b/docs/CommandGuide/llvm-config.pod
index 4992284..8751d1d 100644
--- a/docs/CommandGuide/llvm-config.pod
+++ b/docs/CommandGuide/llvm-config.pod
@@ -69,6 +69,12 @@
 without B<-l> or pathnames.  Useful for linking against a not-yet-installed
 copy of LLVM.
 
+=item B<--libfiles>
+
+Similar to B<--libs>, but print the full path to each library file.  This is
+useful when creating makefile dependencies, to ensure that a tool is relinked if
+any library it uses changes.
+
 =item B<--components>
 
 Print all valid component names.