Fix typo in API warning message.
Fix typo in API warning message.

Change-Id: I51488620a7eeaf7a0edba71437d2b49ae3cf0bf5
Signed-off-by: Jon Loeliger <2c20cf3f4bac0d9467d3fe2c932e4d1e1bc1f44c@netgate.com>

FDio/vpp,chrisy/vpp,vpp-dev/vpp,vpp-dev/vpp,chrisy/vpp,chrisy/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,vpp-dev/vpp,milanlenco/vpp,chrisy/vpp,milanlenco/vpp,milanlenco/vpp,vpp-dev/vpp,vpp-dev/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,milanlenco/vpp,chrisy/vpp,milanlenco/vpp,FDio/vpp,vpp-dev/vpp,FDio/vpp,FDio/vpp,vpp-dev/vpp,milanlenco/vpp,FDio/vpp