doc/man1/openssl-enc.pod.in: document 'k' handling for -bufsize

Apparently, '-bufsize' option parser can handle the 'k' suffix
(and treat is as the value being provided in the multiples of 1024).
Document that.

Complements: d02b48c63a58 "Import of old SSLeay release: SSLeay 0.8.1b"
Signed-off-by: Eugene Syromiatnikov <esyr@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <ppzgs1@gmail.com>
Reviewed-by: Neil Horman <nhorman@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/28405)

diff --git a/doc/man1/openssl-enc.pod.in b/doc/man1/openssl-enc.pod.in
index 7f5dfde57d0677e90ea10d3b41c104c91b4a7188..856b9f879f5b34360c5330d899f50517867d22fe 100644 (file)
--- a/doc/man1/openssl-enc.pod.in
+++ b/doc/man1/openssl-enc.pod.in
@@ -193,10 +193,12 @@ Print out the key and IV used.
 Print out the key and IV used then immediately exit: don't do any encryption
 or decryption.
 
-=item B<-bufsize> I<number>
+=item B<-bufsize> I<number>[B<k>]
 
 Set the buffer size for I/O.
 The maximum size that can be specified is B<2^31-1> (2147483647) bytes.
+The B<k> suffix can be specified to indicate that I<number> is provided
+in kibibytes (multiples of 1024 bytes).
 
 =item B<-nopad>