Fix review comment errors.

src/backend/dbi/gnc-dbisqlresult.cpp

@@ -156,7 +156,7 @@ GncDbiSqlResult::IteratorImpl::get_time64_at_col (const char* col) const
     auto type = dbi_result_get_field_type (m_inst->m_dbi_result, col);
     auto attrs = dbi_result_get_field_attribs (m_inst->m_dbi_result, col);
     if (type != DBI_TYPE_DATETIME)
-        throw (std::invalid_argument{"Requested double from non-double column."});
+        throw (std::invalid_argument{"Requested time64 from non-time64 column."});
     gnc_push_locale (LC_NUMERIC, "C");
 #if HAVE_LIBDBI_TO_LONGLONG
     /* A less evil hack than the one equrie by libdbi-0.8, but

src/backend/sql/gnc-backend-sql.cpp

@@ -158,10 +158,10 @@ gnc_sql_get_object_backend(const std::string& type)
                               [type](const OBEEntry& entry){
                                   return type == std::get<0>(entry);
                               });
-    auto obe = std::get<1>(*entry);
-    if (entry != backend_registry.end())
-        return obe;
-    return nullptr;
+    if (entry == backend_registry.end())
+        return nullptr;
+
+    return std::get<1>(*entry);
 }
 
 void

src/backend/sql/gnc-backend-sql.h

@@ -355,7 +355,7 @@ protected:
  * Row of SQL Query results.
  *
  * This is a "pointer" class of a pimpl pattern, the implementation being
- * GncSqlResul::IteratorImpl. It's designed to present a std::forward_iterator
+ * GncSqlResult::IteratorImpl. It's designed to present a std::forward_iterator
  * like interface for use with range-for while allowing for wrapping a C API.
  *
  * Important Implementation Note: Operator++() as written requires that the