diff --git a/src/include/utils/nabstime.h b/src/include/utils/nabstime.h
index 09eea75ec644b6b5285d47e27456f5e3339a4a85..a822e58a66e1ddad7ccd7458188730987b26184a 100644
--- a/src/include/utils/nabstime.h
+++ b/src/include/utils/nabstime.h
@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2000, PostgreSQL, Inc
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: nabstime.h,v 1.23 2000/02/16 17:26:26 thomas Exp $
+ * $Id: nabstime.h,v 1.24 2000/03/27 17:07:48 thomas Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -52,14 +52,10 @@ typedef TimeIntervalData *TimeInterval;
  *	so redefine them explicitly using these bit patterns. - tgl 97/02/24
  */
 #define EPOCH_ABSTIME	((AbsoluteTime) 0)
-#define INVALID_ABSTIME ((AbsoluteTime) 0x7FFFFFFE)		/* 2147483647 == 2^31 -
-														 * 1 */
-#define CURRENT_ABSTIME ((AbsoluteTime) 0x7FFFFFFD)		/* 2147483646 == 2^31 -
-														 * 2 */
-#define NOEND_ABSTIME	((AbsoluteTime) 0x7FFFFFFC)		/* 2147483645 == 2^31 -
-														 * 3 */
-#define BIG_ABSTIME		((AbsoluteTime) 0x7FFFFFFB)		/* 2147483644 == 2^31 -
-														 * 4 */
+#define INVALID_ABSTIME ((AbsoluteTime) 0x7FFFFFFE)	 /* 2147483647 (2^31 - 1) */
+#define CURRENT_ABSTIME ((AbsoluteTime) 0x7FFFFFFD)	 /* 2147483646 (2^31 - 2) */
+#define NOEND_ABSTIME	((AbsoluteTime) 0x7FFFFFFC)	 /* 2147483645 (2^31 - 3) */
+#define BIG_ABSTIME		((AbsoluteTime) 0x7FFFFFFB)	 /* 2147483644 (2^31 - 4) */
 
 #if defined(_AIX)
 /*
@@ -70,11 +66,10 @@ typedef TimeIntervalData *TimeInterval;
  */
 #define NOSTART_ABSTIME		 ((AbsoluteTime) INT_MIN)
 #else
-#define NOSTART_ABSTIME ((AbsoluteTime) 0x80000001)		/* -2147483647 == - 2^31 */
+#define NOSTART_ABSTIME ((AbsoluteTime) 0x80000001)	 /* -2147483647 (- 2^31) */
 #endif	 /* _AIX */
 
-#define INVALID_RELTIME ((RelativeTime) 0x7FFFFFFE)		/* 2147483647 == 2^31 -
-														 * 1 */
+#define INVALID_RELTIME ((RelativeTime) 0x7FFFFFFE)	 /* 2147483647 (2^31 - 1) */
 
 #define AbsoluteTimeIsValid(time) \
 	((bool) ((time) != INVALID_ABSTIME))