Tweak a few more things in preparation for upcoming pgindent run.

These adjustments adjust code and comments in minor ways to prevent
pgindent from mangling them.  Among other things, I tried to avoid
situations where pgindent would emit "a +b" instead of "a + b", and I
tried to avoid having it break up inline comments across multiple
lines.

src/backend/utils/adt/dbsize.c

@@ -817,11 +817,14 @@ pg_size_bytes(PG_FUNCTION_ARGS)
 		else if (pg_strcasecmp(strptr, "kb") == 0)
 			multiplier = (int64) 1024;
 		else if (pg_strcasecmp(strptr, "mb") == 0)
-			multiplier = (int64) 1024 * 1024;
+			multiplier = ((int64) 1024) * 1024;
+
 		else if (pg_strcasecmp(strptr, "gb") == 0)
-			multiplier = (int64) 1024 * 1024 * 1024;
+			multiplier = ((int64) 1024) * 1024 * 1024;
+
 		else if (pg_strcasecmp(strptr, "tb") == 0)
-			multiplier = (int64) 1024 * 1024 * 1024 * 1024;
+			multiplier = ((int64) 1024) * 1024 * 1024 * 1024;
+
 		else
 			ereport(ERROR,
 					(errcode(ERRCODE_INVALID_PARAMETER_VALUE),

src/backend/utils/adt/tsginidx.c

@@ -222,9 +222,10 @@ TS_execute_ternary(GinChkVal *gcv, QueryItem *curitem)
 	check_stack_depth();
 
 	if (curitem->type == QI_VAL)
-		return checkcondition_gin_internal(gcv,
-										   (QueryOperand *) curitem,
-										   NULL /* don't have any position info */);
+		return
+			checkcondition_gin_internal(gcv,
+										(QueryOperand *) curitem,
+										NULL /* don't have position info */ );
 
 	switch (curitem->qoperator.oper)
 	{

src/backend/utils/adt/tsvector_op.c

@@ -834,7 +834,8 @@ tsvector_filter(PG_FUNCTION_ARGS)
 				posvout->pos[npos++] = posvin->pos[k];
 		}
 
-		if (!npos) /* no satisfactory positions found, so skip that lexeme */
+		/* if no satisfactory positions found, skip lexeme */
+		if (!npos)
 			continue;
 
 		arrout[j].haspos = true;