D-Bus error names are available as constants
<constant>SD_BUS_ERROR_FAILED</constant>, etc., listed above. If
<parameter>name</parameter> is <constant>NULL</constant>, it is
- assumed that no error occured, and 0 is returned. This means that
+ assumed that no error occurred, and 0 is returned. This means that
this function may be conveniently used in a
<function>return</function> statement.</para>