Merge r1756038 from trunk:

Fix spelling in comments and text files.
No functional change.
PR 59990

Submitted by: rjung
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1757669 13f79535-47bb-0310-9956-ffa450edef68