Following pattern would be caught when using "XenCenter" "XenServer" and
"Citrix":
1) not "[" or "/" or """ on left of the brand string
2) brand string followed by space followed by not "p", and optional letter
3) optional letter followed by space followed by the brand string
4) brand string followed by "," and optional letter
5) begin with the brand string
6) end with the brand string
tested with all .resx files
Signed-off-by: Ji Jiang <ji.jiang@citrix.com>
