[analyzer] Eliminated endless loop.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@223426 91177308-0d34-0410-b5e6-96231b3b80d8

tools/scan-build/scan-build

@@ -1533,6 +1533,7 @@ while (@ARGV) {
   }
 
   if ($arg eq "-no-failure-reports") {
+    shift @ARGV;
     $ENV{"CCC_REPORT_FAILURES"} = 0;
     next;
   }