CPP: Give the query a precision.

geoffw0 · geoffw0 · commit 757107660fb2 · 2018-10-17T13:25:44.000+01:00
diff --git a/cpp/ql/src/Critical/OverflowDestination.ql b/cpp/ql/src/Critical/OverflowDestination.ql
@@ -5,6 +5,7 @@
  * @kind problem
  * @id cpp/overflow-destination
  * @problem.severity warning
+ * @precision low
  * @tags reliability
  *       security
  *       external/cwe/cwe-119
