Conservatively corrects whitespace in function "db_gc.single_pass".
Conservatively corrects whitespace in function "db_gc.single_pass".

Signed-off-by: Jonathan Knowles <jonathan.knowles@eu.citrix.com>

Proof that this patch introduces no semantic changes:

camlp4o -printer o -no_comments $file:

ocaml/xapi/db_gc.ml
    4be64da41163f1e65878ec53b9668b12 -
    4be64da41163f1e65878ec53b9668b12 - PASS

simonjbeaumont/xcp-rrdd,djs55/xcp-networkd,djs55/xcp-rrdd,johnelse/xcp-rrdd,robhoes/squeezed,johnelse/xcp-rrdd,koushikcgit/xcp-networkd,koushikcgit/xcp-rrdd,koushikcgit/xcp-networkd,djs55/squeezed,djs55/xcp-networkd,djs55/xcp-rrdd,simonjbeaumont/xcp-rrdd,sharady/xcp-networkd,sharady/xcp-networkd,koushikcgit/xcp-rrdd,koushikcgit/xcp-rrdd