Fix a bug in command line option parsing code
Fix a bug in command line option parsing code

Fix bug affecting command line options of "keyval" type. Although
escaping commands with \ is supported, it is is not applied to the
input recursively.

Signed-off-by: Nikos Skalkotos <577541fe0a092079d98e82e6b5d1d5ca8a62ddfb@grnet.gr>
Signed-off-by: Iustin Pop <acf83a5274f31a43af6b914614365999469c1a31@google.com>
Reviewed-by: Iustin Pop <acf83a5274f31a43af6b914614365999469c1a31@google.com>

apyrgio/snf-ganeti,mbakke/ganeti,bitemyapp/ganeti,leshchevds/ganeti,dimara/ganeti,dimara/ganeti,mbakke/ganeti,andir/ganeti,ganeti-github-testing/ganeti-test-1,ganeti-github-testing/ganeti-test-1,apyrgio/snf-ganeti,ganeti/ganeti,onponomarev/ganeti,andir/ganeti,yiannist/ganeti,leshchevds/ganeti,mbakke/ganeti,grnet/snf-ganeti,apyrgio/ganeti,apyrgio/ganeti,ganeti/ganeti,yiannist/ganeti,ganeti/ganeti,grnet/snf-ganeti,bitemyapp/ganeti,leshchevds/ganeti,onponomarev/ganeti,yiannist/ganeti,andir/ganeti