blackparser: Add missing include

Fix clang build Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>
2018-10-22 20:16:11 -03:00 · 2018-10-22 20:16:11 -03:00 · 22c656f855
--- a/include/maddy/blockparser.h
+++ b/include/maddy/blockparser.h
@ -7,6 +7,7 @@
 // -----------------------------------------------------------------------------

 #include <functional>
+#include <sstream>
 #include <string>

 // -----------------------------------------------------------------------------