Check format strings when a called function has more than one FormatAttr (one for 'scanf' and one for 'printf').  Fixes <rdar://problem/8409437>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113472 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed