[0.4.7][SERVICES] RChangeServiceConfig2A(): Zero-Initialize InfoW variable CORE-14521

[0.4.7][SERVICES] RChangeServiceConfig2A(): Zero-Initialize InfoW variable CORE-14521

This lets forward NULL Info.psd/Info.psd->lpDescription/Info.psfa,
instead of an uninitialized value.

Currently this branch does not show the bug CORE-14521, but that is just because
it doesn't use the more mean "advapi32 : service" test of 0.4.10.

If we would port back the newer test from 0.4.9-dev-555-g 3c1b7834e15b652076c21d2d4ed8232d522b971a
, then we would see it hanging as well.

fix picked from 0.4.10-dev-627-g e3a1c2c81b2e1167552cbb8f8ca1d774e025ccd7
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I also muted a forgotten DPRINT1, like it was done during 0.4.10-dev'ing on master
and fixed some whitespace indentation, like it was done during 0.4.9-dev'ing on master