* src/augeas_sym.version: correct version for aug_escape_name
* src/augeas_sym.version: correct version for aug_escape_name

The (unreleased) version for aug_escape_name was erroneously set to 0.19.0
in commit 1aa51f93; the correct version for the next release is 0.20.0

dafugg/augeas,kunkku/augeas,mlichvar/augeas,mchf/augeas,pevalme/augeas,ptoscano/augeas,kunkku/augeas,jjlin/augeas,lutter/augeas,jtopjian/augeas,hercules-team/augeas,GeoffWilliams/augeas,manandbytes/augeas,lutter/augeas,kunkku/augeas,dafugg/augeas,lutter/augeas,mlichvar/augeas,hercules-team/augeas,ptoscano/augeas,dafugg/augeas,jjlin/augeas,jtopjian/augeas,jjlin/augeas,mchf/augeas,pevalme/augeas,ptoscano/augeas,mlichvar/augeas,manandbytes/augeas,GeoffWilliams/augeas,pevalme/augeas