* data/c++.m4 (syntax_error): Fix the indentation of 'inline'.
# ----------------------
# Provide the implementation needed by the public types.
m4_define([b4_public_types_define],
# ----------------------
# Provide the implementation needed by the public types.
m4_define([b4_public_types_define],
]b4_parser_class_name[::syntax_error::syntax_error (]b4_locations_if([const location_type& l, ])[const std::string& m)
: std::runtime_error (m)]b4_locations_if([
, location (l)])[
]b4_parser_class_name[::syntax_error::syntax_error (]b4_locations_if([const location_type& l, ])[const std::string& m)
: std::runtime_error (m)]b4_locations_if([
, location (l)])[