Fix uninitialized variables. Found by ubsan.

llvm-svn: 178913
diff --git a/lld/lib/Core/TargetInfo.cpp b/lld/lib/Core/TargetInfo.cpp
index 05d7ffa..da97a10 100644
--- a/lld/lib/Core/TargetInfo.cpp
+++ b/lld/lib/Core/TargetInfo.cpp
@@ -25,6 +25,7 @@
   , _forceLoadAllArchives(false)
   , _printRemainingUndefines(true)
   , _allowRemainingUndefines(false)
+  , _logInputFiles(false)
 {
 }