scanf analysis: the 'a' length modifier is valid with a scanlist

Before r148025 we (accidentally) didn't check whether a length modifier is
appropriate for a scanlist, but now we do.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148026 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/Analysis/FormatString.cpp b/lib/Analysis/FormatString.cpp
index 8e295aa2be..351973529c 100644
--- a/lib/Analysis/FormatString.cpp
+++ b/lib/Analysis/FormatString.cpp
@@ -550,6 +550,7 @@ bool FormatSpecifier::hasValidLengthModifier() const {
       switch (CS.getKind()) {
         case ConversionSpecifier::sArg:
         case ConversionSpecifier::SArg:
+        case ConversionSpecifier::ScanListArg:
           return true;
         default:
           return false;