Despite what TMM showed in its output about I believe now that the syntax in the F5 article is CORRECT. I tested with the following commands:
openssl s_client -connect [IP ADDRESS]:443 -ssl3
openssl s_client -connect [IP ADDRESS]:443 -tls1
openssl s_client -connect [IP ADDRESS]:443 -tls1_1
openssl s_client -connect [IP ADDRESS]:443 -tls1_2
In the first 3 there was no negotiation but the last one accepted TLSv1.2.
Note:I also noticed the syntax difference which might explain the difference in syntax for OpenSSL and TMM for TLSv1.2.