Prepare to add fdb implementation

Fixes a end iter deref and remove rpath from test

VersionedMap.cpp

@@ -596,7 +596,7 @@ struct __attribute__((__visibility__("hidden"))) VersionedMap::Impl {
 
     finger.clear();
 
-    bool ignored;
+    bool ignored = false;
     finger.push(root, ignored);
 
     for (;;) {
@@ -810,7 +810,7 @@ struct __attribute__((__visibility__("hidden"))) VersionedMap::Impl {
     Finger finger;
     if (continueKey.len == 0) {
       // Set finger to last entry in tree
-      bool ignored;
+      bool ignored = false;
       finger.push(latestRoot, ignored);
       uint32_t c;
       while ((c = child<std::memory_order_relaxed>(finger.backNode(), true,
@@ -1120,7 +1120,7 @@ VersionedMap::Iterator &VersionedMap::Iterator::operator--() {
 
   // Handle decrementing end
   if (impl->finger.searchPathSize() == 0) {
-    bool ignored;
+    bool ignored = false;
     impl->finger.push(
         impl->map->roots.getThreadSafeHandle().rootForVersion(impl->version),
         ignored);
@@ -1247,7 +1247,7 @@ VersionedMap::Iterator VersionedMap::begin(int64_t version) const {
   result.impl = new (safe_malloc(sizeof(Iterator::Impl))) Iterator::Impl();
   result.impl->version = version;
 
-  bool ignored;
+  bool ignored = false;
   result.impl->finger.push(
       impl->roots.getThreadSafeHandle().rootForVersion(version), ignored);
   if (result.impl->finger.backNode() == 0) {