Merge r1422135 from trunk:

httxt2dbm: Correct length computation for the 'value' stored in the DBM file  PR 47650
Submitted by: jailletc36
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1430298 13f79535-47bb-0310-9956-ffa450edef68