Fix unsupported kernel detection
/usr/bin/bash: line 344: return: can only `return' from a function or sourced script
Signed-off-by: Veronika Kabatova vkabatov@redhat.com
/usr/bin/bash: line 344: return: can only `return' from a function or sourced script
Signed-off-by: Veronika Kabatova vkabatov@redhat.com