Added option description for -find-bugs.

llvm-svn: 29706
diff --git a/llvm/docs/CommandGuide/bugpoint.pod b/llvm/docs/CommandGuide/bugpoint.pod
index d2b922b..a7f4cbf 100644
--- a/llvm/docs/CommandGuide/bugpoint.pod
+++ b/llvm/docs/CommandGuide/bugpoint.pod
@@ -64,6 +64,11 @@
 reduce test programs.  If you're trying to find a bug in one of these passes,
 B<bugpoint> may crash.
 
+=item B<-find-bugs>
+
+Continually randomize the specified passes and run them on the test program
+until an error is found in LLVM or the user kills B<bugpoint>. 
+
 =item B<--help>
 
 Print a summary of command line options.