Support broadcast when dumpstate finishes.

Add flag that sends BUGREPORT_FINISHED broadcast when dumpstate
is finished, including the resulting filesystem paths.  Also reduces
directory creation to 0770.

Bug: 7005318
Change-Id: Id4c6b699a56f8acd859b7ab73368500e1a8f3c67
diff --git a/cmds/dumpstate/utils.c b/cmds/dumpstate/utils.c
index d081590..9b0013e 100644
--- a/cmds/dumpstate/utils.c
+++ b/cmds/dumpstate/utils.c
@@ -379,7 +379,7 @@
         chp = strchr(chp, '/');
         if (chp) {
             *chp = 0;
-            mkdir(path, 0775);  /* drwxrwxr-x */
+            mkdir(path, 0770);  /* drwxrwx--- */
             *chp++ = '/';
         }
     }