doc: Fix X509_NAME_print documentation to reflect actual behavior

doc: Fix X509_NAME_print documentation to reflect actual behavior

The documentation claimed that X509_NAME_print() would indent each line
by obase characters and wrap lines exceeding 80 characters. However, the
implementation has never actually used obase for any purpose since the
line-wrapping code was removed in 2007 as unreachable.

Update the documentation to state that obase is ignored and the function
outputs on a single line.

Fixes #18004

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Eugene Syromiatnikov <esyr@openssl.org>
MergeDate: Fri Mar 13 08:24:57 2026
(Merged from https://github.com/openssl/openssl/pull/29900)