Limit search for a version var name to start at the beginning of a line,
otherwise, if the var name is used in a comment, that comment line will
be replaced, rather than the desired assignment line.
Move bblayer update message into function where it's actually updated,
rather than assuming all successful config file update are to the
bblayers.conf file.
Replace a stray tab with spaces for consistency.
[Fixes YOCTO #9318]
Signed-off-by: Bill Randle <william.c.randle@intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
