core/transaction: fix comment

(cherry picked from commit fe51a61)
(cherry picked from commit e35d83a7065ef062f113522dfdacbb41622c13ab)
(cherry picked from commit ef1657c7db1a0942eedb0b6f9aee597e7158e61d)
(cherry picked from commit 610a974)

Author: yuwata

src/core/transaction.c

@@ -955,8 +955,8 @@ int transaction_add_job_and_dependencies(
         assert(type < _JOB_TYPE_MAX_IN_TRANSACTION);
         assert(unit);
 
-        /* Before adding jobs for this unit, let's ensure that its state has been loaded This matters when
-         * jobs are spawned as part of coldplugging itself (see e. g. path_coldplug()).  This way, we
+        /* Before adding jobs for this unit, let's ensure that its state has been loaded. This matters when
+         * jobs are spawned as part of coldplugging itself (see e. g. path_coldplug()). This way, we
          * "recursively" coldplug units, ensuring that we do not look at state of not-yet-coldplugged
          * units. */
         if (MANAGER_IS_RELOADING(unit->manager))