Added new memcheck command-line option --show-possibly-lost. Closes #201170.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11292 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/memcheck/mc_include.h b/memcheck/mc_include.h
index 7606198..c2ef03e 100644
--- a/memcheck/mc_include.h
+++ b/memcheck/mc_include.h
@@ -395,6 +395,9 @@
 /* In leak check, show reachable-but-not-freed blocks?  default: NO */
 extern Bool MC_(clo_show_reachable);
 
+/* In leak check, show possibly-lost blocks?  default: YES */
+extern Bool MC_(clo_show_possibly_lost);
+
 /* Assume accesses immediately below %esp are due to gcc-2.96 bugs.
  * default: NO */
 extern Bool MC_(clo_workaround_gcc296_bugs);