Recognize 'q' as a format length modifier (from BSD).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94894 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/PrintfFormatString.cpp b/lib/Analysis/PrintfFormatString.cpp
index 05b5d9c..d2bcbb0 100644
--- a/lib/Analysis/PrintfFormatString.cpp
+++ b/lib/Analysis/PrintfFormatString.cpp
@@ -185,6 +185,7 @@
     case 'z': lm = AsSizeT;      ++I; break;
     case 't': lm = AsPtrDiff;    ++I; break;
     case 'L': lm = AsLongDouble; ++I; break;
+    case 'q': lm = AsLongLong;   ++I; break;
   }
   FS.setLengthModifier(lm);