debug: debug_stream_slot: Fix a typo and remove unneeded newlines #20777

Job	Run time
manifest-check	46s
build-windows (imx8 imx8x imx8m imx8ulp)	8m 58s
build-windows (tgl tgl-h)	6m 35s
build-windows (mtl lnl)	7m 17s
LP64-WIP	3m 22s
build-windows (ptl)	5m 50s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	6m 14s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	6m 1s
build-linux (mnfst, tgl tgl-h)	5m 13s
build-linux (mnfst, mtl lnl)	6m 19s
build-windows (-d, lnl)	5m 49s
build-linux (zmain, mtl lnl)	5m 24s
build-linux (zmain, tgl tgl-h)	4m 49s
build-linux (zmain, ptl)	4m 6s
build-linux (mnfst, --all)	15m 47s
build-linux (-d, mnfst, lnl)	4m 1s
build-linux (mnfst, ptl)	3m 55s
compare-linux-win	39s
	1h 41m 5s

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