libsemanage: initialize bools_modified variable.

In semanage_direct_commit() error path, bools_modified can be used in a
if statement without being initialized (when a "goto cleanup" is taken
early).  clang warns about this bug:

    direct_api.c:1441:18: error: variable 'bools_modified' may be
    uninitialized when used here [-Werror,-Wconditional-uninitialized]
            if (modified || bools_modified) {
                            ^~~~~~~~~~~~~~
    direct_api.c:1087:48: note: initialize the variable 'bools_modified'
    to silence this warning
                preserve_tunables_modified, bools_modified,
                                                          ^
                                                           = 0

Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
1 file changed