* src/lens.c (lens_release): allow NULL lens to be passed in
* src/lens.c (lens_release): allow NULL lens to be passed in

kumy/augeas,ptoscano/augeas,hercules-team/augeas,jasperla/augeas,GeoffWilliams/augeas,lutter/augeas,camptocamp/augeas,mchf/augeas,jjlin/augeas,mlichvar/augeas,ptoscano/augeas,dafugg/augeas,pevalme/augeas,kumy/augeas,mchf/augeas,kumy/augeas,domcleal/augeas,dafugg/augeas,manandbytes/augeas,raphink/augeas,lutter/augeas,jtopjian/augeas,GeoffWilliams/augeas,jjlin/augeas,lutter/augeas,ptoscano/augeas,manandbytes/augeas,bkearney/augeas,hercules-team/augeas-do-not-use,hercules-team/augeas-do-not-use,bkearney/augeas,bkearney/augeas,camptocamp/augeas,hercules-team/augeas,raphink/augeas,camptocamp/augeas,hercules-team/augeas-do-not-use,jasperla/augeas,domcleal/augeas,pevalme/augeas,dafugg/augeas,mlichvar/augeas,kumy/augeas,jtopjian/augeas,domcleal/augeas,MikaelSmith/augeas,kunkku/augeas,camptocamp/augeas,pevalme/augeas,bkearney/augeas,kunkku/augeas,jjlin/augeas,kunkku/augeas,mlichvar/augeas,MikaelSmith/augeas