fterrors.h: Fix documentation extraction of `FT_Error_String`.
diff --git a/include/freetype/fterrors.h b/include/freetype/fterrors.h
index 3575cc5..151941d 100644
--- a/include/freetype/fterrors.h
+++ b/include/freetype/fterrors.h
@@ -281,6 +281,8 @@ FT_BEGIN_HEADER
FT_EXPORT( const char* )
FT_Error_String( FT_Error error_code );
+ /* */
+
FT_END_HEADER