LU-14771 ptlrpc: Rearrange version mismatch message

LU-14771 ptlrpc: Rearrange version mismatch message

Minor change to reposition the client version string on
console warning message, and merge split string to one line

Test-Parameters: trivial
Signed-off-by: Andrew Elwell <Andrew.Elwell@gmail.com>
Change-Id: I89242cff873028f4f76bafdd5a14f169a98f7875
Reviewed-on: https://review.whamcloud.com/44029
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Patrick Farrell <pfarrell@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>