Merge pull request #198 from rdallman/cf-compact-range

C API: bugfix column_family_compact_range

db/c.cc

@@ -770,6 +770,7 @@ void rocksdb_compact_range_cf(
     const char* limit_key, size_t limit_key_len) {
   Slice a, b;
   db->rep->CompactRange(
+      column_family->rep,
       // Pass nullptr Slice if corresponding "const char*" is nullptr
       (start_key ? (a = Slice(start_key, start_key_len), &a) : nullptr),
       (limit_key ? (b = Slice(limit_key, limit_key_len), &b) : nullptr));