whitespace: Fix indentation in Xapi_pbd.check_plugged_on_master_constraint
whitespace: Fix indentation in Xapi_pbd.check_plugged_on_master_constraint

$ git stash
$ camlp4o -printer o -no_comments ocaml/xapi/xapi_pbd.ml | md5sum
8520ab33bcc773ec2e3c30cf729fc881  -
$ git stash pop
$ camlp4o -printer o -no_comments ocaml/xapi/xapi_pbd.ml | md5sum
8520ab33bcc773ec2e3c30cf729fc881  -

Signed-off-by: Si Beaumont <a0992b7f1f450b4c7716d34b81a2d6f0877ae11a@citrix.com>

srowe/xen-api,rafalmiel/xen-api,euanh/xen-api,Frezzle/xen-api,thomassa/xen-api,jjd27/xen-api,simonjbeaumont/xen-api,thomassa/xen-api,simonjbeaumont/xen-api,rafalmiel/xen-api,simonjbeaumont/xen-api,rafalmiel/xen-api,euanh/xen-api,thomassa/xen-api,rafalmiel/xen-api,jjd27/xen-api,euanh/xen-api,Frezzle/xen-api,simonjbeaumont/xen-api,Frezzle/xen-api,simonjbeaumont/xen-api,srowe/xen-api,jjd27/xen-api,euanh/xen-api,srowe/xen-api,Frezzle/xen-api,thomassa/xen-api,simonjbeaumont/xen-api,jjd27/xen-api,rafalmiel/xen-api,jjd27/xen-api,srowe/xen-api,euanh/xen-api,euanh/xen-api,srowe/xen-api,jjd27/xen-api,Frezzle/xen-api,thomassa/xen-api,thomassa/xen-api,rafalmiel/xen-api