We pass free-form strings from the users to qemu, thus we need
escape
commas since they are passed to qemu monitor.
Partially resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=1373535
---
src/qemu/qemu_command.c | 102 +++++++++++++++++++++++++++++++-----------------
1 file changed, 66 insertions(+), 36 deletions(-)