m68k: mac: Reword comment using double "in"

People keep on sending (incorrect) patches to remove the second
occurrence of the word "in".  Reword the comment to stop the inflood.
Suggested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://lore.kernel.org/r/0229879ee3e2d8828707d291cddbb89ac18a10c2.1666945731.git.geert@linux-m68k.org

arch/m68k/mac/misc.c

@@ -126,7 +126,7 @@ static void via_rtc_send(__u8 data)
 
 	reg = via1[vBufB] & ~(VIA1B_vRTCClk | VIA1B_vRTCData);
 
-	/* The bits of the byte go in in MSB order */
+	/* The bits of the byte go into the RTC in MSB order */
 
 	for (i = 0 ; i < 8 ; i++) {
 		bit = data & 0x80? 1 : 0;