urealtime.realtime was being calculated incorrectly

Looks like a merge gone awry perhaps.

Fixes #270

doc/fixes37.0

@@ -1,4 +1,4 @@
-$NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.22 $ $NHDT-Date: 1576288434 2019/12/14 01:53:54 $
+$NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.27 $ $NHDT-Date: 1577050470 2019/12/22 21:34:30 $
 
 General Fixes and Modified Features
 -----------------------------------
@@ -13,6 +13,7 @@ improvements to pronoun usage when hallucinating
 function calls made from mapglyph based on dungeon level are now called once
 	per level
 fix accessing mons[-1] when trying to gate in a non-valid demon
+fast hero could have random clairvoyance happen more than once on same turn
 urealtime.realtime was being incorrectly calculated
 
 
@@ -42,6 +43,9 @@ split off some of the functionality that was in makedefs (compiled-in options
 replace quest.txt and associated conversion to quest.dat via makedefs with
 	lua quest texts loaded at runtime
 some altars are displayed in different colors (for tty and curses at least)
+add 'quick_farsight' option to provide some control over random clairvoyance
+	where pausing to be able to browse temporarily visible aspects of the
+	revealed map can seem intrusive; doesn't affect clairvoyance spell
 
 
 Platform- and/or Interface-Specific New Features
@@ -57,7 +61,7 @@ Code Cleanup and Reorganization
 move majority of global variables into instance_globals struct g
 move zeroobj, zeromonst, zeroany into const_globals struct cg
 remove STATIC_DCL, STATIC_OVL, STATIC_VAR, STATIC_PTR
-old Qt moved from win/Qt to win/Qt3
+old Qt moved from win/Qt to win/Qt3 and files renamed to use qt3_ prefix
 more current Qt for Qt version 4 and 5 moved from win/Qt4 to win/Qt; qt4
 	moniker changed to qt_