tools/uncrustify.cfg: Switch "sp_cmt_cpp_start" back to "ignore".
That change was misguided, because it confuses difference between textual
comments and commented source code:
// This is textual comment
//foo("this_is_source_code, don't mix up the two");
@@ -853,7 +853,7 @@ sp_extern_paren = ignore # ignore/add/remove/force
# Add or remove space after the opening of a C++ comment,
# i.e. '// A' vs. '//A'.
-sp_cmt_cpp_start = add # ignore/add/remove/force
+sp_cmt_cpp_start = ignore # ignore/add/remove/force
# If true, space is added with sp_cmt_cpp_start will be added after doxygen
# sequences like '///', '///<', '//!' and '//!<'.
